共 15 条
- [2] CHARACTERISTICS OF NORMAL LABOR IN DIFFERENT RACIAL GROUPS [J]. BRITISH JOURNAL OF OBSTETRICS AND GYNAECOLOGY, 1975, 82 (08): : 593 - 601
- [3] FRIEDMAN E A, 1973, Clinical Obstetrics and Gynecology, V16, P172, DOI 10.1097/00003081-197303000-00010
- [4] PRIMIGRAVID LABOR - A GRAPHICOSTATISTICAL ANALYSIS [J]. OBSTETRICS AND GYNECOLOGY, 1955, 6 (06) : 567 - 589
- [8] PHILPOTT RH, 1972, J OBSTET GYN BR COMM, V79, P592