Nr 225 - Myocardial ischemia, 1971, ; Nr 226 - The esophagogastric junction. 1971. ; Nr 227 - Diagnosis and treatment of common thyroid diseases. 1971.
Card's contents:
516,532 Nr 225 - Myocardial ischemia, 1971, 516,543 Nr 226 - The esophagogastric junction. 1971. 516,545 Nr 227 - Diagnosis and treatment of common thyroid diseases. 1971.