共 29 条
- [3] BAUER AW, 1966, AM J CLIN PATHOL, V45, P493
- [7] DELFORGE J P, 1970, Contraception, V1, P57, DOI 10.1016/0010-7824(70)90006-5
- [8] DUNNET WN, 1960, LANCET, V2, P1227
- [9] FLEISS JL, 1973, STATISTICAL METHODS, P80
- [10] CONTRACEPTIVE USE IN UNITED-STATES, 1973-1976 [J]. FAMILY PLANNING PERSPECTIVES, 1978, 10 (05): : 264 - 269