TY  - RPRT
TI  - Emergency contraception: WHO Task Force study.
AU  - J Trussell
PY  - 1998
DO  - 10.1016/s0140-6736(05)60561-2
UR  - https://pubmed.ncbi.nlm.nih.gov/9777862/
ID  - 9777862
ER  -