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At what level of evidence is evidence from a single descriptive or qualitative study
Question 1 options:
Level 2
Level 4
Level 6
Level 7
At what level of evidence is evidence from a well-designed case control and cohort
studies?
Question 2 options:
a) Level 2
b) Level 4
c) Level 6
d) Level 7
t what level of evidence is obtained from at least one well designed Randomized
Controlled Trail (RCT)?
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