title: [Our predecessors' problems].
mesh_terms: D013502:General Surgery / Q000266:history*; D049673:History, 20th Century; D006801:Humans; D010437:Peptic Ulcer / Q000601:surgery; D011044:Poland; D012955:Societies, Medical / Q000266:history
vernacular_title: Problemy naszych poprzedników--cz.III.