title: Achievements in tropical medicine during the past twenty-five years.
mesh_terms: D000349:Africa; D001208:Asia; D006373:Helminthiasis / Q000266:history; D049673:History, 20th Century; D007306:Insecticides; D007918:Leprosy / Q000266:history; D008288:Malaria / Q000266:history / Q000517:prevention & control; D014330:Tropical Medicine / Q000266:history*
chemical_list: D007306:Insecticides