title: [In memoriam Dr. Ernst Derra, 6 March 1901-9 May 1939].
mesh_terms: D006348:Cardiac Surgical Procedures / Q000266:history; D013502:General Surgery / Q000266:history; D005860:Germany, West; D006666:History of Medicine
vernacular_title: In memoriam Professor Dr. med. Dr. med. h.c. Dr. med. h.c. Ernst Derra 6. 3. 1901--9. 5. 1979.