共 32 条
[7]
Braun V., 2006, Qualitative Res Psychol, V3, P77, DOI DOI 10.1191/1478088706QP063OA
[9]
Birth spacing and risk of adverse perinatal outcomes - A meta-analysis
[J].
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION,
2006, 295 (15)
:1809-1823