共 26 条
[1]
*AM COLL OBST GYN, 1996, ACOG PRACT GUID, V3
[2]
[Anonymous], 1997, NO EASY ANSWERS RES
[3]
Calle EE, 1996, LANCET, V347, P1713, DOI 10.1016/S0140-6736(96)90806-5
[4]
*CANC STER HORM ST, 1987, NEW ENGL J MED, V316, P650, DOI DOI 10.1056/NEJM198703123161102
[5]
FAMILY-PLANNING, SEXUALLY-TRANSMITTED DISEASES AND CONTRACEPTIVE CHOICE - A LITERATURE UPDATE .1.
[J].
FAMILY PLANNING PERSPECTIVES,
1992, 24 (02)
:75-84
[6]
CROMER BA, 1996, J PEDIATR, V129, P67
[7]
CUNDY T, 1993, BRIT MED J, V308, P220
[10]
Grimes D, 1998, LANCET, V352, P428