Christa L. Fischer Walker, Ingrid K. Friberg, Nancy Binkin, Mark Young, Neff Walker, Olivier Fontaine, Eva Weissman, Akanksha Gupta, Robert E. Black
PLoS Med. 2011 March; 8(3): e1000428. Published online 2011 March 22. doi: 10.1371/journal.pmed.1000428