TY  - RPRT
TI  - Are administratively collected data useful for case-control studies?
AU  - M R Karagas
PY  - 1993
DO  - 10.1016/1047-2797(93)90018-y
UR  - https://pubmed.ncbi.nlm.nih.gov/8287145/
ID  - 8287145
ER  -