1. Department of International Health, Johns Hopkins Bloomberg School of Public Health, Suite E-8139, 615 North Wolfe Street, Baltimore MD 21205, United States of America (USA).
2. Child Health Unit, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh.
3. Family Health Division, Bill & Melinda Gates Foundation, Seattle, USA.
4. Save the Children’s Saving Newborn Lives Initiative, Washington, USA.