title: An experimental basis for environmental medicine.
mesh_terms: D000220:Adaptation, Biological; D000818:Animals; D005075:Biological Evolution; D002417:Cattle; D002645:Chickens; D003968:Diarrhea, Infantile / Q000209:etiology; D004195:Disease Models, Animal; D004777:Environment; D004989:Ethics; D006801:Humans; D007226:Infant Mortality; D008511:Medicine; D051379:Mice; D008954:Models, Biological; D009154:Mutation; D010272:Parasitic Diseases / Q000517:prevention & control; D010641:Phenotype; D011014:Pneumonia / Q000209:etiology; D012756:Sheep; D014376:Tuberculosis / Q000209:etiology