3BK Douglas,B Eliazberth,KC Karin,et al.The "safer choices" intervention:its impact on the sexual behaviors of diferent subgroups of high school student.Journal of Adolescent Health,2004,35:442-52.
8Makhdoom A.Shah,Nasra M.Shah,Rafiqul Islam Chowdhury,etc.Unmet need for contraception in Kuwait:issues for health care providers.Social science and medicine.2004,59:1573-1580.
9Jennifer N.Isaacs,Mitchell D.Creinin.Miscommunication between healthcare providers and patients may result in unplanned pregnancies.Contraception.2003,68:373-376.
10Richard Boise,Ruth Petersen,Kathryn M.Curtis,et al.Reproductive health counseling at pregnancy testing:a pilot study.Contraception.2003,68:377-383.
