Countdown to 2015 for maternal, newborn, and child survival: the 2008 report on tracking coverage of interventions.
Countdown Coverage Writing Group, Countdown to 2015 Core Group, Bryce J, Daelmans B, Dwivedi A, Fauveau V, Lawn JE, Mason E, Newby H, Shankar A, et al. Lancet. 2008 Apr 12; 371(9620):1247-58.