Intravenous versus intramuscular oxytocin injection for preventing uterine atonic primary postpartum haemorrhage in third stage of labour: A double-blind randomised controlled trial. - Okaforcha EI; Eleje GU; Ikechebelu JI; Ezeama CO; Igbodike EP; Ugwu EO; Okpala BC; Mbachu II; Umeononihu OS; Ogabido CA; Onwusulu DN; Oguejiofor CB; et al. (SAGE open medicine, 2024)