5Hansen B B, Svare J, Viktrup L, et al. Urinary incontinence during pregnancy and 1 year after delivery in primiparous women compared with a control group of nulliparous women [J]. Neurourol Urodyn, 2012, 31(4): 475.
6Doctor H V, Findley S E, Cometto G, et al. Awarene.s of critical danger signs of pregnancy and delivery, preparations for delivery, and utilization of skilled birth attendants in Nigeria[J]. J Health Care Poor Underserved, 2013, 24(1) : 152.
8Mogos M F, August E M, Salinas-Miranda A, et al. A systematic review of quality of life measures in pregnant and postpartum mothers[ J ]. Applied Research in Quality of Life,2013,8(2) :219 -250.