[Development of heart surgery in the German Democratic Republic].
D001808:Blood Vessels / Q000601:surgery*; D006348:Cardiac Surgical Procedures; D005859:Germany, East; D006801:Humans; D013903:Thoracic Surgery; D014656:Vascular Surgical Procedures
VESSELS/surgery
Zur Entwicklung der Herzchirurgie in der Deutschen Demokratischen Republik.