TY  - RPRT
TI  - Improving contraceptive technology: is it a zero-sum game?
AU  - Lee Lee Doyle
AU  - Wayne C Shields
PY  - 2005
DO  - 10.1016/j.contraception.2005.07.012
UR  - https://pubmed.ncbi.nlm.nih.gov/16246654/
ID  - 16246654
ER  -