5Lisa K,Johnson,Alison E,et al.Patient satisfaction and the impact of written material about postpartum contraceptive decisions[J].American Journal of Obstetrics and Gynecology,2003,188(5):1202-1204.
6Mrkua J,Sreiner,James T,et al.Communicating contraceptive effectiveness:A randomized controlled trial to inform a World Health Organization family planning handbook[J].American Journal of Obstetrics and Gynecology,2006,195(1):85-91.
7HRP/WHO. Program of Action Adopted at the International Confer- ence on Population and Development [ R ]. Egypt : Cairo, 1994,5 : 13.
8Trussell J, Raymond EG. Preventing unintended pregnancy: let us count the ways [ J ]. Lancet, 2006,368 : 1747 - 1748.