title: Ernst Unger: a pioneer in modern surgery.
mesh_terms: D001803:Blood Transfusion / Q000266:history; D006328:Cardiac Catheterization / Q000266:history; D013502:General Surgery / Q000266:history; D005858:Germany; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D016030:Kidney Transplantation; D009493:Neurosurgery / Q000266:history; D014180:Transplantation / Q000266:history