TY - JOUR AU - Kalmar, P; Irrgang, E TI - Cardiac surgery in Germany during 1994. A report by the German Society for Thoracic and Cardiovascular Surgery JO - Thorac Cardiovasc Surg IS - 3 VL - 43 PY - 1995 DO - 10.1055/s-2007-1013796 SP - 181 EP - 183 ER -