共 14 条
[3]
Hatcher R A, 1988, SIECUS Rep, V17, P1
[4]
HATCHER RA, 1989, CONTRACEPTIVE TECHNO, P2
[5]
HATCHER RA, 1989, CONTRACEPTIVE TECHNO, P338
[6]
JAGDEO T, 1990, CARIBBEAN CONTRACEPT, V6, P54
[7]
JAGDEO T, 1990, CARIBBEAN CONTRACEPT, V7, P51
[8]
Mosher W. D., 1990, ADV DATA, V182, P1
[9]
RICHTERS J, 1988, LANCET, V2, P1487
[10]
RICHTERS J, 1989, HEALTHRIGHT, V9, P16