Bhutta Zulfiqar A, Atun Rifat, Ladher Navjoyt, Abbasi Kamran
Centre of Excellence in Women and Child Health, Aga Khan University, Karachi, Pakistan
Dalla Lana School of Public Health, University of Toronto, Toronto, Canada.
BMJ. 2018 Oct 22;363:k4433. doi: 10.1136/bmj.k4433.