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In a study of 100 subjects with colonic polyposis, 20 develope malagnancies over a 10 year follow up period. To estimate the relative risk of colonic polyposis for the developement of colon cancer, which of following control groups would be best..
a. healthy medical students
b. a historical control group.
c. a similar gp of sub with colonic polyposis
d. sub derives from gasteroenterology referal clinic
e. sub with no evidence of colonic polyposis.
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aa
if you chose EE, you might introduce other risk factors, which will affect the conclusion
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durhum could u plz meet me for some time at yahoo messenger?? i want to discuss few questions of NBME 5..it wont take much time..if i post each n every doubt , it will take along time n u know we r short of time.. plz if possible
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dat way i can just tell uthe q number and block number and dont have to write full questions..
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vitf, how about next monday night?
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vitf post Qs here all will be benefited.Thanks,,,
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pmle dont get me wrong , i want everyone to beneit but this way it will take me a long long time , n my exam is in less than a week..
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I understand,,,vitf u just put Q nos fro long Q and and short Q write?I will also post some Qs too
