Otieno, G. A., G. M. Bigogo, B. O. Nyawanda, F. Aboud, R. F. Breiman, C. P. Larson, and D. R. Feikin. “Caretakers’ Perception towards Using Zinc to Treat Childhood Diarrhoea in Rural Western Kenya”. Journal of Health, Population and Nutrition, vol. 31, no. 3, Nov. 2013, pp. 321-9, doi:10.3329/jhpn.v31i3.16823.