TY  - RPRT
TI  - Methodologic problems and standards in case-control research.
AU  - A R Feinstein
PY  - 1979
DO  - 10.1016/0021-9681(79)90009-2
UR  - https://pubmed.ncbi.nlm.nih.gov/447778/
ID  - 447778
ER  -