
Start time and influence factor of postpartum contraception: a cross-sectional study in 15 provinces in China
ZHANG Yi1, LI Yuyan2, LIANG Ji3, CHE Yan2
Chinese Journal of Family Planning ›› 2019, Vol. 27 ›› Issue (10) : 1279.
Start time and influence factor of postpartum contraception: a cross-sectional study in 15 provinces in China
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