Case-control study - Open Access .click

Results 191 to 195 of about 10,426,972 (195)

Some of the next articles are maybe not open access.

Nordisk medicin, 1988
openaire +1 more source

European journal of respiratory diseases. Supplement, 1981
openaire +1 more source

humans
case-control studies
case–control study

research design
3. good health
cohort study

case control study
epidemiologic methods
outbreak