Communicating contraceptive effectiveness: an updated counseling chart.
Steiner
Markus J
MJ
Trussell
James
J
Johnson
Sarah
S
D003142:Communication; D003267:Contraception / Q000706:statistics & numerical data*; D003376:Counseling / Q000379:methods; D005193:Family Planning Services; D005260:Female; D006801:Humans