title: Purkyne's fibers: the first report (1839), the German version (1845), and the English version.
mesh_terms: D004739:England; D005858:Germany; D006329:Heart Conduction System; D049672:History, 19th Century; D008374:Manuscripts, Medical as Topic / Q000266:history*; D011044:Poland; D014177:Translations / Q000266:history*