2009
Human fertility (Cambridge, England), (2009).12 3 10.1080/14647270903212156.
2009
Lancet, (2009).374 9694 10.1016/S0140-6736(09)61122-3.
2009
Lancet, (2009).374 9700 10.1016/S0140-6736(09)61258-7.
2009
BMC pediatrics, (2009).9 1 10.1186/1471-2431-9-57.
2009
BMC public health, (2009).9 1 10.1186/1471-2458-9-336.
2009
Lancet, (2009).374 9693 10.1016/S0140-6736(09)61204-6.
2009
Lancet, (2009).374 9693 10.1016/S0140-6736(09)61203-4.
2009
BJOG, (2009).116 Suppl 10.1111/j.1471-0528.2009.02328.x.
2009
Indian journal of pediatrics, (2009).76 8 10.1007/s12098-009-0175-1.
2009
Bulletin of the World Health Organization, (2009).87 9 10.2471/blt.08.057794.
