title: The effects of the single and double two-step exercise tests upon the electrocardiograms of 200 normal persons.
authors.forename: L
authors.initials: L
authors.lastname: SCHERLIS
authors.forename: A A
authors.initials: AA
authors.lastname: SANDBERG
authors.forename: J
authors.initials: J
authors.lastname: WENER
authors.forename: J
authors.initials: J
authors.lastname: DVORKIN
authors.forename: A M
authors.initials: AM
authors.lastname: MASTER
mesh_terms: D004562:Electrocardiography; D015444:Exercise; D005080:Exercise Test; D006801:Humans