Does household access to improved water and sanitation in infancy and childhood predict better vocabulary test performance in Ethiopian, Indian, Peruvian and Vietnamese cohort studies?
Dearden KA, Brennan AT, Behrman JR, Schott W, Crookston BT, Humphries DL, Penny ME, Fernald LC. Does household access to improved water and sanitation in infancy and childhood predict better vocabulary test performance in Ethiopian, Indian, Peruvian and Vietnamese cohort studies? BMJ Open 2017, 7: e013201. PMID: 28270388, PMCID: PMC5353302, DOI: 10.1136/bmjopen-2016-013201.Peer-Reviewed Original Research