Contraceptive effectiveness: what should the counseling message be?
Steiner
M J
MJ
Family Health International, Research Triangle Park, NC, USA. msteiner@fhi.org
D003270:Contraceptive Agents; D005193:Family Planning Services; D005260:Female; D006801:Humans; D011247:Pregnancy; D018873:Pregnancy Rate; D014481:United States
D003270:Contraceptive Agents