共 9 条
[1]
BARNS T, 1989, POSTGRADUATE OBSTETR, P249
[2]
BULLOUGH C, 1990, MATERNITY CARE DEV C
[3]
ESSEX B, 1978, MANAGEMENT OBSTETRIC
[4]
RAO KB, 1975, OBSTET GYNECOL, V46, P397
[5]
RAO KB, 1978, REPORT MATERNAL MORT
[6]
RAO KB, 1985, MATERNAL MORTALITY I
[7]
1989, WOMENS HLTH SAFE MOT
[8]
1987, WOMENS HLTH MIDWIFE
[9]
1986, STUDY MATERNAL MORTA