共 42 条
[11]
Center for Disease Control and Prevention, INF PUBL HLTH
[12]
Centers for Disease Control and Prevention, 2011, NAT SURV FAM GROWTH
[13]
Chandra A, 1998, Vital Health Stat 23, P1
[14]
Chandra Anjani, 2005, Vital Health Stat 23, P1
[16]
Groves Robert M, 2009, Vital Health Stat 1, P1
[18]
The decline of infertility: apparent or real?
[J].
FERTILITY AND STERILITY,
2006, 86 (03)
:524-526