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Comments ...

 -1  (nbme22#49)

FA pg 508 (19) mptp causes parkins..................................................


 +1  (nbme22#34)

why is this not a cross sectional survey? ... since we are asking at a particular time

drdoom  As Aristotle once quipped, “A ‘single-point in time’ doth not a cross-sectional study make.” The design of a cross-sectional study would not define “ahead of time” two cohorts (two groups); said another way, a cross-sectional design would not “split people into two groups.” In the design of a cross-sectional study there is only “one group”, and then you ask all members of that group some question (“Do you have asthma?”). At the end of a cross-sectional study, the authors will be able to make a statement like this: “We called 10,000 phone numbers with area code 415 at random and asked ‘Do you take Drug X?’ 500 responded ‘I don’t know’, 633 responded ‘Yes’, and 8,867 responded ’No’.”

 +0  (nbme22#10)

WHY NOT YES,and then share the money with the patieny so he doesn't doubt your motives.





Subcomments ...

would anyone be able to clarify what the others would be? A) Allergen mediated vasoconstriction, leading to ischemic tissue injury: Type I B) Binding of antigen to IgE on the surface of mast cells leading to mast cell degranulation: Type I C) deposition of antigen-antibody complexes within postcapillary venules, leading to activation of complement: Not sure D) Phagocytosis of antigen by neutrophils, leading to oxidant mediated tissue damage: Type III?

sunny  i think C is type III +  
sunny  i think C is type III +  


would anyone be able to clarify what the others would be? A) Allergen mediated vasoconstriction, leading to ischemic tissue injury: Type I B) Binding of antigen to IgE on the surface of mast cells leading to mast cell degranulation: Type I C) deposition of antigen-antibody complexes within postcapillary venules, leading to activation of complement: Not sure D) Phagocytosis of antigen by neutrophils, leading to oxidant mediated tissue damage: Type III?

sunny  i think C is type III +  
sunny  i think C is type III +