title: THE INFLUENCE OF VARYING As-Vs INTERVALS ON SPLIT FIRST HEART SOUNDS: ITS BEARING ON THE CAUSE OF SPLIT SOUNDS AND THE MECHANISM OF THE FIRST SOUND.
authors.affiliation: Robinette Foundation, Medical Clinic, Hospital of the University of Pennsylvania, Philadelphia.
authors.forename: C C
authors.initials: CC
authors.lastname: Wolferth
authors.forename: A
authors.initials: A
authors.lastname: Margolies