TY  - RPRT
TI  - Guidelines for reading case-control studies.
AU  - M J Lichtenstein
AU  - C D Mulrow
AU  - P C Elwood
PY  - 1987
DO  - 10.1016/0021-9681(87)90190-1
UR  - https://pubmed.ncbi.nlm.nih.gov/3597690/
ID  - 3597690
ER  -