共 4 条
[1]
BURKE G, 1991, PROGR OBSTET GYNAECO, V9, P111
[2]
COMBS CA, 1991, OBSTET GYNECOL, V77, P69
[3]
MATERNAL MORTALITY IN DEVELOPING-COUNTRIES
[J].
BRITISH JOURNAL OF OBSTETRICS AND GYNAECOLOGY,
1989, 96 (01)
:1-3
[4]
JOUPPILA P, 1995, OBSTET GYNECOL, V7, P446