TY  - RPRT
TI  - Oral contraceptive practice guidelines.
AU  - R T Burkman
AU  - L P Shulman
PY  - 1998
DO  - 10.1016/s0010-7824(98)00081-x
UR  - https://pubmed.ncbi.nlm.nih.gov/9807691/
ID  - 9807691
ER  -