1Sandovsl GA. Sexual experiences of the fillipino youth :Demographic patterns and attitudinal correlates. Adolescent and unmarried young adults[M]. Shanghai,P. R. C. Oct ,2000. 19-21.
7Guijarro S, Naranjo J, Padilla M, et al. Family risk factors associated with adolescent pregnancy:study of a group of adolesc health[J]. Pediatr Clin North Am, 1999,25:166-172.
8National Center for Health Statistics(1982,1988). National survey of family growth, washington, DC.
9Ellen JM, Aral SO, Madger LS. Do differences in sexual behaviors account for the racial/ethnic differences in adolescent's self-reported history of a sexually transmitted diseases[J]. Sex Transmi Dis, 1998,25(3):125-129.
10Fox KK,Whittington WL, Levine WC, et al. Gonorrhea in the united states [J]. Sex Transmi Dis, 1998, 25 (7) : 386-392.
