TY  - RPRT
TI  - Introduction to pharmacoepidemiology.
AU  - A G Hartzema
AU  - M S Porta
AU  - H H Tilson
PY  - 1987
DO  - 10.1177/106002808702100915
UR  - https://pubmed.ncbi.nlm.nih.gov/3652936/
ID  - 3652936
ER  -