TY  - GEN
AU  - Feinstein,A R
TI  - The case-control study: valid selection of subjects
SN  - 0021-9681
PY  - 1985///0822
KW  - Epidemiologic Methods
KW  - Humans
KW  - Sampling Studies
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1016/0021-9681(85)90041-4
ER  -