Authors
Instituto de Salud Pública, Universidad Veracruzana, Av. Dr. Luis Castelazo Ayala s/n. Col. Industrial Ánimas, 91190 Xalapa, Veracruz, MX; Departamento de Pediatría, de Obstetricia y Ginecología, y de Medicina Preventiva, Universidad Autónoma de Barcelona, Bellaterra (Cerdanyola del Vallés) 08193 Barcelona
Instituto de Salud Pública, Universidad Veracruzana, Av. Dr. Luis Castelazo Ayala s/n. Col. Industrial Ánimas, 91190 Xalapa, Veracruz
Health Policy and Health Services Research Group, Health Policy Research Unit, Consortium for Health Care and Social Services of Catalonia, Avinguda Tibidabo 21, 08022 Barcelona
Health Policy and Health Services Research Group, Health Policy Research Unit, Consortium for Health Care and Social Services of Catalonia, Avinguda Tibidabo 21, 08022 Barcelona
