Ten centers were added to the existing University Sports Medicine Institutes of Berlin, Hamburg, Freiburg and Strasbourg: Frankfurt am Main, Göttingen, Kiel, Königsberg, Leipzig, Munich, Münster, Prague, Rostock and Vienna.
12 years after his original article on an exercise test, Arthur Master (1897-1973) together with Henry L. Jaffe (1896-1979) suggested to take an ECG before and after an exercise test to detect coronary insufficiency.
Irving M. Liebow (1913-1993) and Harold Feil (1889-1987) of the Departments of Biometry, Medicine and Preventive Medicine, Case of Western Reserve University, Cleveland, Ohio, reported that digitalis caused an ST segment depression and may confuse the diagnosis of ischemia in the exercise ECG. They also suggested the possibility of the reducing coronary flow of the medicine.