共 50 条
- [25] PERINATAL MORTALITY IN TWIN BIRTHS [J]. GEBURTSHILFE UND FRAUENHEILKUNDE, 1977, 37 (04) : 286 - 290
- [27] Births to teenagers: Trends and obstetric outcomes [J]. OBSTETRICS AND GYNECOLOGY, 1996, 87 (05): : 668 - 674
- [29] CHANGES IN OBSTETRIC CARE IN BREECH BIRTHS [J]. JOURNAL OF THE ROYAL COLLEGE OF GENERAL PRACTITIONERS, 1986, 36 (289): : 385 - 385
- [30] SOCIAL COST OF TWIN BIRTHS [J]. ACTA GENETICAE MEDICAE ET GEMELLOLOGIAE, 1983, 32 (02): : 105 - 111