共 21 条
- [1] BUTTRAM VC, 1979, CURR PROB OBST GYN F, V2, P3
- [2] GOLDSTEIN D P, 1980, Journal of Adolescent Health Care, V1, P37, DOI 10.1016/S0197-0070(80)80007-6
- [3] GOLDSTEIN DP, 1980, J REPROD MED, V24, P251
- [6] Kessler IT, 1970, COMMUNITY EPIDEMIOLO, P47
- [7] KISTNER RW, 1975, PROGR INFERTILITY, P345
- [8] Kleinbaum DG., 1982, EPIDEMIOLOGIC RES PR
- [10] KURLAND LT, 1980, CLIN NEUROEPIDEMIOLO, P37