TY  - RPRT
TI  - The case-control study as data missing by design: estimating risk differences.
AU  - S Wacholder
PY  - 1996
DO  - 10.1097/00001648-199603000-00007
UR  - https://pubmed.ncbi.nlm.nih.gov/8834553/
ID  - 8834553
ER  -