共 11 条
[1]
BRESLOW NE, 1980, IARC SCI PUBL, V32, P259
[2]
CHI I, 1985, 113TH ANN M AM PUBL
[4]
GOLDSTUCK ND, 1981, CONTRACEPT DELIV SYS, V2, P295
[5]
GOLDSTUCK ND, 1979, PRACTITIONER, V223, P647
[6]
GOLDSTUCK ND, 1979, BRIT J FAMILY PLAN, V5, P5
[7]
HEARTWELL SF, 1983, OBSTET GYNECOL, V61, P31
[8]
HOWARD G, 1972, LANCET, V2, P1339
[10]
TIETZE C, 1969, ADV PLANNED PARENT, P84