title: Friedrich Wilhelm Zahn, M.D. (1845--1904): what's my line?
mesh_terms: D000818:Animals; D001001:Anura; D005858:Germany; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D010336:Pathology / Q000266:history*; D013927:Thrombosis / Q000473:pathology*