title: Tropical medicine and hygiene in Tanganyika Territory. Nineteen years in the Colonial Medical Service.
authors.forename: H G
authors.initials: HG
authors.lastname: Calwell
mesh_terms: D049673:History, 20th Century; D006920:Hygiene / Q000266:history*; D013636:Tanzania; D014330:Tropical Medicine / Q000266:history*; D014353:Trypanosomiasis, African / Q000266:history