Authors: Harry Campbell , Shams el Arifeen, Tabish Hazir, James O’Kelly, Jennifer Bryce, Igor Rudan, Shamim Ahmad Qazi
Journal: PLOS Medicine
Date Published: 7 May 2013
This article is a part of a Special Collection of PLOS titled Measuring Coverage in Maternal, Newborn, and Child Health. This collection presents innovative assessments of the validity of measuring population with a variety of articles, videos, and blog posts.