[Silent myocardial ischemia in long-term ECG with various mani festations of coronary heart disease].

Silent myocardial ischaemia seems to be of prognostic value in coronary artery disease. We examined 47 patients with coronary artery disease: 1. 20 patients with a history of myocardial infarction (MI), 2.

[Comparison of the suitability of first time and related blood donors].

In order to lessen the fear of transfusion-transmitted AIDS, formalized autologous and directed donation programs have been established. The advantages of directed donations, however, have been questioned. A comparison of the qualification of first time homologous and directed donations showed in our groups significant differences for HBsAg positivity, ESR and hemoglobin.