The impact of the Safe Delivery Application on knowledge and skills managing postpartum haemorrhage in a low resource setting: a cluster randomized controlled trial in West Wollega region, Ethiopia

在资源匮乏的环境下，安全分娩应用程序对产后出血管理知识和技能的影响：一项在埃塞俄比亚西沃莱加地区开展的整群随机对照试验