Authors: Margaret C Hogan; Biani Saavedra-Avendano; Blair G Darney; Luis M Torres-Palacios; Ana L Rhenals-Osorio; Bertha L Vázquez Sierra; Patricia N Soliz-Sánchez; Emmanuela Gakidou; Rafael Lozano Journal: Bull World Health Organ Date: 2016-05-02 Impact factor: 9.408