共 31 条
[13]
European perinatal health report, MOTH HLTH MORT MORB
[18]
HOGBERG U, 1986, ACTA OBSTET GYN SCAN, V65, P161
[19]
Maternal mortality, United States and Canada, 1982-1997
[J].
BIRTH-ISSUES IN PERINATAL CARE,
2000, 27 (01)
:4-11