[On the relation between the PQ interval and the frequency. Time measurement by means of an electrocardioscope].
D004562:Electrocardiography; D006331:Heart Diseases / Q000175:diagnosis*; D006339:Heart Rate; D006801:Humans; D008722:Methods; D011379:Prognosis
Uber die Zusammenhänge zwischen der PQ-Zeit und der Frequenz. Zeitmessung mittels eines Elektrokardioskops.