3Ma Q, Ono-Kihara M, Cong L, et al. Early initiation of sexual ac tivitya risk factor for sexually transmitted diseases, HIV infec- tion,and unwnted pregnancy among university students in China [J]. BMC Public Health, 2009,9 :111.
4Fonzst C, Greenslade, William H, et al. Post-abortion care serv- ices an update from PRIME[J]. Resources for Women's Health, 1998.1(2):1.
5O'Mahony C,Mullin N,Sissons G.Extensive vulval oedema secondary to severe pelvic infection.Int J STD AIDS,2008,19(8):565-567.
6Zbou W, Nielsen GL, Larsen H, et al. Induced abortion and placenta complications in the subsequent pregnency. Acta Obstet Gynecol Scand, 2001, 80(12):1115-20.
7Bankole A, Singh S, Haas T. Characteristics of women who obtain induced abortion : a worldwide review. Int Fam Plann Perspect, 1999, 25(2):68-70.
8William JRB, Grnee ED, Catherine GL, et al. West African youth initiative: outcome of a reproductive health education program. J Adol Health, 2001, 29(6):436-46.
9Lundberg M, Perriss C, Adolfsson R. Family environment and personality: perceived parenting and the role of personality. Clin Psychol Psychother, 2000, 4(7):267-74.
10Luo Lin.Induced abortion among unmarried women in sichuan province,China.Contraception,1995,51(1):59-63