TY  - RPRT
A1  - Centers for Disease Control and Prevention
T1  - Appendix D: Contraceptive effectiveness
Y1  - 2014
UR  - https://www.cdc.gov/mmwr/preview/mmwrhtml/rr6304a5.htm
PB  - Centers for Disease Control and Prevention
T3  - Morbidity and Mortality Weekly Report

ER  -