By World Health Organization(WHO)
By Edmund G Wagner, J N Lanoix
By Unidentified Author
By Earnest F Gloyna
By Rajagopalan, S., Shiffman, M.A.
By World Health Organization(WHO), Dyck, E.Van
By Barton, E., McMahon, R., Piot, M.
By Various Authors
By Crompton, D.W.T., Montresor, A., Nesheim, Malden C., Savioli, L.
By World Health Organization
By M. Assar
By N/A
By Mackay, Judith, Eriksen, Michael P
By Faich, G.A., Castle, W.M., Council for International Organizations of Medical Sciences
By M. Jacob, World Health Organization
By World Health Organization, R. Beaglehole
By World Health Organization. Department of Reproductive Health and Research
By World Health Organization(WHO), Etienne G. Krug, etc., World Health Organization