title: Photographic gallery of contributors of the century.
mesh_terms: D000349:Africa; D001208:Asia; D005060:Europe; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007918:Leprosy / Q000266:history*; D009656:North America; D010139:Pacific Islands; D013020:South America