Studies of the cardiovascular system were made among 26-mile marathon runners after at least five years of physical training. Studies made with the subjects at rest showed an electrocardiogram ...

The effects of drugs that produce known hemodynamic alterations were assessed on externally recorded pulse waves, heart sounds, and the relationship of these to each other and to the electrocardiogram ...

Defects in the muscular portion of the interventricular septum are frequently multiple. Although their incidence is significant, scant attention has been paid them as a distinct entity. This report ...

It should be clearly understood that no evidence was uncovered to indicate an unequivocal etiology for this uncommon disease. One is tempted to qualify "uncommon" in that it no longer connotes the ...