Crack vs. Fissure: Know the Difference
By Shumaila Saeed || Updated on December 25, 2023
"A crack is a narrow break or fracture in a surface, often without depth, while a fissure is a longer, deeper, and more irregular split or gap."
Key Differences
A crack is typically a minor, superficial break in a surface, often straight or slightly curved. In contrast, a fissure is a deeper, more pronounced split, often irregular and extending deep into the material. Cracks are usually observed on surfaces like walls, while fissures can be found in geological formations.
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Dec 07, 2023
Cracks are generally smaller and may not penetrate deeply into the material, being more of a surface-level phenomenon. Fissures, on the other hand, are larger, wider, and often indicate a significant separation in the material, such as in rocks or the earth.
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Dec 07, 2023
Cracks can form due to minor stress, temperature changes, or wear and tear. Fissures often result from more significant forces, such as tectonic movements, substantial structural stress, or prolonged erosion.
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Dec 07, 2023
While a crack might be a cosmetic issue or a minor defect, a fissure can signify serious structural or geological issues. For instance, cracks in paint are less concerning than fissures in the foundation of a building.
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Dec 07, 2023
The term "crack" is also used metaphorically to describe a weakness or small opportunity, whereas "fissure" is less commonly used metaphorically and is more specific to its literal meaning.
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Dec 07, 2023
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Comparison Chart
Depth
Usually superficial, not very deep
Deeper, extending well into the material
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Dec 07, 2023
Formation
Caused by minor stress or wear and tear
Results from significant forces or movements
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Dec 07, 2023
Metaphorical Usage
Used metaphorically for weaknesses or chances
Less commonly used metaphorically
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Dec 07, 2023
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Crack and Fissure Definitions
Fissure
An anatomical groove or cleft.
The fissure in the brain is known as the Sylvian fissure.
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Nov 25, 2023
Fissure
A long, narrow opening or line of breakage.
The earthquake caused a fissure in the ground.
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Nov 25, 2023
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Fissure
A state of division or disagreement.
A fissure within the party threatened its unity.
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Nov 25, 2023
Fissure
A crack forming in rock or earth.
The geologists studied the fissure for signs of volcanic activity.
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Nov 25, 2023
Fissure
A breach or division in an intangible concept.
There was a deep cultural fissure between the two communities.
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Nov 25, 2023
Crack
To change sharply in pitch or timbre, as from hoarseness or emotion. Used of the voice.
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Oct 19, 2023
Crack
(Chemistry) To break into simpler molecules, often by means of heat or a catalyst.
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Oct 19, 2023
Fissure
(Anatomy) A normal groove or furrow, as in the liver or brain, that divides an organ into lobes or parts.
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Oct 19, 2023
Crack
To cause to break without complete separation of parts
The pebble cracked the car's windshield.
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Oct 19, 2023
Fissure
(Medicine) A break in the skin, usually where it joins a mucous membrane, producing a cracklike sore or ulcer.
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Oct 19, 2023
Fissure
A long, narrow crack or opening made by breaking or splitting, especially in rock or earth.
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Oct 19, 2023
Crack
To strike, especially with a sharp sound
Cracked the intruder over the head with a lamp.
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Oct 19, 2023
Fissure
(anatomy) A groove, deep furrow, elongated cleft or tear between body parts or in the substance of an organ; a sulcus.
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Oct 19, 2023
Crack
To cause to come into forceful contact with something, especially with a sharp sound
Fell and cracked his head against the floor.
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Oct 19, 2023
Fissure
(anatomy) A break or slit in tissue usually at the junction of skin and mucous membrane.
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Oct 19, 2023
Fissure
A narrow opening, made by the parting of any substance; a cleft; as, the fissure of a rock.
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Oct 19, 2023
Crack
To break through (an obstacle) in order to win acceptance or acknowledgment
Finally cracked the "men-only" rule at the club.
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Oct 19, 2023
Crack
To discover the solution to, especially after considerable effort
Crack a code.
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Oct 19, 2023
Crack
(Informal) To tell (a joke), especially on impulse or in an effective manner.
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Oct 19, 2023
Fissure
(anatomy) a long narrow slit or groove that divides an organ into lobes
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Oct 19, 2023
Crack
An attempt or try
Gave him a crack at the job.
Took a crack at photography.
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Oct 19, 2023
Crack
Excelling in skill or achievement; first-rate
A crack shot.
A crack tennis player.
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Oct 19, 2023
Crack
(intransitive) To form cracks.
It's been so dry, the ground is starting to crack.
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Oct 19, 2023
Crack
(intransitive) To break apart under force, stress, or pressure.
When I tried to stand on the chair, it cracked.
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Oct 19, 2023
Crack
(intransitive) To become debilitated by psychological pressure.
Anyone would crack after being hounded like that.
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Oct 19, 2023
Crack
(intransitive) To break down or yield, especially under interrogation or torture.
When we showed him the pictures of the murder scene, he cracked.
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Oct 19, 2023
Crack
(intransitive) To make a cracking sound.
The bat cracked with authority and the ball went for six.
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Oct 19, 2023
Crack
To alternate between high and low register in the process of eventually lowering.
His voice finally cracked when he was fourteen.
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Oct 19, 2023
Crack
(intransitive) To make a sharply humorous comment.
"I would too, with a face like that," she cracked.
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Oct 19, 2023
Crack
To realize that one is transgender.
She cracked at age 22 and came out to her friends and family over the next few months.
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Oct 19, 2023
Crack
(transitive) To make a crack or cracks in.
The ball cracked the window.
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Oct 19, 2023
Crack
(transitive) To break open or crush to small pieces by impact or stress.
You'll need a hammer to crack a black walnut.
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Oct 19, 2023
Crack
(transitive) To strike forcefully.
She cracked him over the head with her handbag.
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Oct 19, 2023
Crack
To cause to yield under interrogation or other pressure.
They managed to crack him on the third day.
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Oct 19, 2023
Crack
To solve a difficult problem.
I've finally cracked it, and of course the answer is obvious in hindsight.
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Oct 19, 2023
Crack
(transitive) To overcome a security system or component.
It took a minute to crack the lock, three minutes to crack the security system, and about twenty minutes to crack the safe.
They finally cracked the code.
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Oct 19, 2023
Crack
(transitive) To tell (a joke).
The performance was fine until he cracked that dead baby joke.
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Oct 19, 2023
Crack
To break down (a complex molecule), especially with the application of heat: to pyrolyse.
Acetone is cracked to ketene and methane at 700°C.
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Oct 19, 2023
Crack
To circumvent software restrictions such as regional coding or time limits.
That software licence will expire tomorrow unless we can crack it.
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Oct 19, 2023
Crack
To open a canned beverage, or any packaged drink or food.
I'd love to crack open a beer.
Let's crack a tube and watch the game.
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Oct 19, 2023
Crack
(colloquial) To barely reach, attain to (a measurement, extent).
An underground band that never cracked the Hot 100
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Oct 19, 2023
Crack
A thin and usually jagged space opened in a previously solid material.
A large crack had formed in the roadway.
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Oct 19, 2023
Crack
A narrow opening.
We managed to squeeze through a crack in the rock wall.
Open the door a crack.
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Oct 19, 2023
Crack
A sharply humorous comment; a wisecrack.
I didn't appreciate that crack about my hairstyle.
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Oct 19, 2023
Crack
(slang) Crack cocaine, a potent, relatively cheap, addictive variety of cocaine; often a rock, usually smoked through a crack-pipe.
Crack head
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Oct 19, 2023
Crack
(onomatopoeia) The sharp sound made when solid material breaks.
The crack of the falling branch could be heard for miles.
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Oct 19, 2023
Crack
(onomatopoeia) Any sharp sound.
The crack of the bat hitting the ball.
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Oct 19, 2023
Crack
(informal) An attempt at something.
I'd like to take a crack at that game.
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Oct 19, 2023
Crack
(informal) The space between the buttocks.
Pull up your pants! Your crack is showing.
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Oct 19, 2023
Crack
Conviviality; fun; good conversation, chat, gossip, or humorous storytelling; good company.
The party was great crack.
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Oct 19, 2023
Crack
Business; events; news.
What's the crack?
What's this crack about a possible merger?
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Oct 19, 2023
Crack
(computing) A program or procedure designed to circumvent restrictions or usage limits on software.
Has anyone got a crack for DocumentWriter 3.0?
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Oct 19, 2023
Crack
An expanding circle of white water surrounding the site of a large explosion at shallow depth, marking the progress of the shock wave through the air above the water.A nuclear explosion in shallow water; the crack is clearly visible on the water's surface.
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Oct 19, 2023
Crack
(Internet slang) Extremely silly, absurd or off-the-wall ideas or prose.
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Oct 19, 2023
Crack
(archaic) A mental flaw; a touch of craziness; partial insanity.
He has a crack.
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Oct 19, 2023
Crack
Highly trained and competent.
Even a crack team of investigators would have trouble solving this case.
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Oct 19, 2023
Crack
Excellent, first-rate, superior, top-notch.
She's a crack shot with that rifle.
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Oct 19, 2023
Crack
To break or burst, with or without entire separation of the parts; as, to crack glass; to crack nuts.
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Oct 19, 2023
Crack
To rend with grief or pain; to affect deeply with sorrow; hence, to disorder; to distract; to craze.
O, madam, my old heart is cracked.
He thought none poets till their brains were cracked.
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Oct 19, 2023
Crack
To cause to sound suddenly and sharply; to snap; as, to crack a whip.
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Oct 19, 2023
Crack
To burst or open in chinks; to break, with or without quite separating into parts.
By misfortune it cracked in the coling.
The mirror cracked from side to side.
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Oct 19, 2023
Crack
To be ruined or impaired; to fail.
The credit . . . of exchequers cracks, when little comes in and much goes out.
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Oct 19, 2023
Crack
To utter a loud or sharp, sudden sound.
As thunder when the clouds in autumn crack.
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Oct 19, 2023
Crack
To utter vain, pompous words; to brag; to boast; - with of.
Ethoipes of their sweet complexion crack.
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Oct 19, 2023
Crack
A partial separation of parts, with or without a perceptible opening; a chink or fissure; a narrow breach; a crevice; as, a crack in timber, or in a wall, or in glass.
Shumaila Saeed
Oct 19, 2023
Crack
Rupture; flaw; breach, in a moral sense.
My love to thee is sound, sans crack or flaw.
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Oct 19, 2023
Crack
A sharp, sudden sound or report; the sound of anything suddenly burst or broken; as, the crack of a falling house; the crack of thunder; the crack of a whip.
Will the stretch out to the crack of doom?
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Oct 19, 2023
Crack
The tone of voice when changed at puberty.
Though now our voicesHave got the mannish crack.
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Oct 19, 2023
Crack
Mental flaw; a touch of craziness; partial insanity; as, he has a crack.
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Oct 19, 2023
Crack
A crazy or crack-brained person.
I . . . can not get the Parliament to listen to me, who look upon me as a crack and a projector.
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Oct 19, 2023
Crack
A boy, generally a pert, lively boy.
Val. 'T is a noble child. Vir. A crack, madam.
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Oct 19, 2023
Crack
Free conversation; friendly chat.
What is crack in English? . . . A crack is . . . a chat with a good, kindly human heart in it.
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Oct 19, 2023
Crack
A chance or opportunity to do something; an attempt; as, I'll take a crack at it.
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Oct 19, 2023
Crack
A form of cocaine, highly purified and prepared as small pellets, especially suitable for smoking; - also called rock. Used in this form it appears to be more addicting than cocaine powder.
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Oct 19, 2023
Crack
Of superior excellence; having qualities to be boasted of; as, a crack shot.
One of our crack speakers in the Commons.
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Oct 19, 2023
Crack
A sudden sharp noise;
The crack of a whip
He heard the cracking of the ice
He can hear the snap of a twig
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Oct 19, 2023
Crack
A blemish resulting from a break without complete separation of the parts;
There was a crack in the mirror
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Oct 19, 2023
Crack
A purified and potent form of cocaine that is smoked rather than snorted
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Oct 19, 2023
Crack
Become fractured; break or crack on the surface only;
The glass cracked when it was heated
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Oct 19, 2023
Crack
Hit forcefully; deal a hard blow, making a cracking noise;
The teacher cracked him across the face with a ruler
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Oct 19, 2023
Crack
Pass through (a barrier);
Registrations cracked through the 30,000 mark in the county
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Oct 19, 2023
Crack
Cause to become cracked;
Heat and light cracked the back of the leather chair
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Oct 19, 2023
Crack
Of the highest quality;
An ace reporter
A crack shot
A first-rate golfer
A super party
Played top-notch tennis
An athlete in tiptop condition
She is absolutely tops
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Oct 19, 2023
Crack
A narrow break or fracture in a solid surface.
The vase had a hairline crack but was still intact.
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Nov 25, 2023
Crack
To find a solution to a problem.
She finally cracked the code of the safe.
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Nov 25, 2023
Repeatedly Asked Queries
What is a fissure?
A fissure is a long, narrow opening or line of breakage, often deeper than a crack.
Shumaila Saeed
Dec 07, 2023
Is a fissure always large?
Not always, but fissures are typically longer and deeper than cracks.
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Dec 07, 2023
Are cracks found only in solid materials?
Mostly, cracks appear in solids like glass or concrete, but they can also refer to breaks in non-solid materials.
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Dec 07, 2023
Is "fissure" used metaphorically?
Less commonly, but it can metaphorically suggest a significant division or split.
Shumaila Saeed
Dec 07, 2023
What is a crack?
A crack is a narrow break or split in a surface, typically appearing suddenly.
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Dec 07, 2023
What does "fissure" mean in medical contexts?
In medicine, a fissure refers to a deep, narrow, elongated ulcer or break in the skin.
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Dec 07, 2023
What differentiates a crack from a fissure in geology?
In geology, a crack is a small split, while a fissure is a larger, more significant opening.
Shumaila Saeed
Dec 07, 2023
Can "fissure" refer to geological formations?
Yes, "fissure" is commonly used to describe splits in the earth or rock formations.
Shumaila Saeed
Dec 07, 2023
Is "crack" used in medical terminology?
Yes, it can describe small breaks in bones or skin.
Shumaila Saeed
Dec 07, 2023
Can "crack" be used metaphorically?
Yes, "crack" can metaphorically imply a weakness or a small opportunity.
Shumaila Saeed
Dec 07, 2023
Can "crack" imply something minor?
Yes, "crack" often suggests a minor or surface-level break.
Shumaila Saeed
Dec 07, 2023
Is "crack" used in engineering?
Yes, it's often used to describe structural flaws or minor breaks in materials.
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Dec 07, 2023
Can a crack lead to a fissure?
In some cases, an untreated or stressed crack can develop into a fissure.
Shumaila Saeed
Dec 07, 2023
Does "fissure" have a specific application in any field?
Besides geology and medicine, it's not commonly specialized in other fields.
Shumaila Saeed
Dec 07, 2023
Are there specific types of fissures?
Yes, there are various types, such as volcanic fissures or anal fissures, depending on the context.
Shumaila Saeed
Dec 07, 2023
Does "crack" have informal meanings?
Yes, informally, it can mean a try or attempt, as in "give it a crack."
Shumaila Saeed
Dec 07, 2023
How are fissures treated medically?
Treatment depends on the location and severity, ranging from medication to surgery.
Shumaila Saeed
Dec 07, 2023
Is "crack" used in computing?
Yes, it can refer to breaking into a computer system or software piracy.
Shumaila Saeed
Dec 07, 2023
Are fissures always visible?
Not always; some fissures, especially in medical contexts, might be internal.
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Dec 07, 2023
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About Author
Written by
Shumaila SaeedShumaila Saeed, an expert content creator with 6 years of experience, specializes in distilling complex topics into easily digestible comparisons, shining a light on the nuances that both inform and educate readers with clarity and accuracy.
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