Intrauterine Bakri Balloon and Vaginal Tamponade Combined with Abdomina Compression for the Management of Postpartum Hemorrhage - Guo, Y; Hua, R; Bian, S; Xie, X; Ma, J; Cai, Y; Sooranna, SR; Cheng, W (JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA, 2018)