Workspace Your Artstor image groups were copied to Workspace. The Artstor website will be retired on Aug 1st. CLINIC-BASED SURVEY OF ACQUIRED HIV DRUG RESISTANCE ANNEX 3.: EXAMPLE: SAMPLE SIZE ...

In epidemiologic studies and disease prevention trials, interest often involves estimation of the relationship between some disease endpoints and individual exposure. In some studies, due to the ...

Power analyses and sample size calculations are important parts of many research projects. Often, before data are even collected, it is necessary to calculate and justify the required sample size for ...

Power analyses and sample size calculations are important parts of many research projects. Often, before data are even collected, it is necessary to calculate and justify the required sample size for ...