共 31 条
[1]
Alexander NJ, 1996, AIDS, V10, P1
[2]
[Anonymous], 2009, Modern epidemiology
[4]
BELL RJ, 1993, OBSTET GYNECOL, V82, P328
[8]
ELLIOTT JP, 1992, J REPROD MED, V37, P713
[10]
Heise L., 1998, PRACTICAL ETHICAL DI