title: History, definition, and problems of medical geography: a general review. Report to the Commission on Medical Geography International Geographical Union 1952.
mesh_terms: D002980:Climate; D003141:Communicable Diseases / Q000453:epidemiology / Q000635:transmission; D003430:Cross-Sectional Studies; D004463:Ecology; D005843:Geography; D006801:Humans; D008377:Maps as Topic; D009017:Morbidity