A. Austin,H. Gulema,M. Belizan,D. S. Colaci,T. Kendall,M. Tebeka,M. Hailemariam,D. Bekele,L. Tadesse,Y. Berhane and A. Langer. Barriers to providing quality emergency obstetric care in Addis Ababa, Ethiopia: Healthcare providers’ perspectives on training, referrals and supervision, a mixed methods study. BMC Pregnancy Childbirth. 2015;15:10.1186/s12884-015-0493-4.