title: THE EFFECT OF EXERCISE AND OF FOUR COMMONLY USED DRUGS ON THE NORMAL HUMAN ELECTROCARDIOGRAM, WITH PARTICULAR REFERENCE TO T WAVE CHANGES.
authors.affiliation: Cardiac Clinics and Laboratory, Massachusetts General Hospital, Boston.
authors.forename: A S
authors.initials: AS
authors.lastname: Hartwell
authors.forename: J B
authors.initials: JB
authors.lastname: Burrett
authors.forename: A
authors.initials: A
authors.lastname: Graybiel
authors.forename: P D
authors.initials: PD
authors.lastname: White