共 51 条
[1]
Maternal morbidity and mortality from severe sepsis: a national cohort study
[J].
BMJ OPEN,
2016, 6 (08)
[5]
Atherton MJ, 2004, NURS ECON, V22, P6
[7]
Time of Pregnancy Recognition and Prenatal Care Use: A Population-based Study in the United States
[J].
BIRTH-ISSUES IN PERINATAL CARE,
2010, 37 (01)
:37-43
[9]
Determinants of the number of antenatal visits in a metropolitan region
[J].
BMC PUBLIC HEALTH,
2010, 10