title: SOME OBSERVATIONS ON THE BALLISTOCARDIOGRAPHIC PATTERN, WITH SPECIAL REFERENCE TO THE H AND K WAVES.
authors.affiliation: Department of Physiology, College of Physicians and Surgeons, Columbia University, New York City.
authors.forename: J L
authors.initials: JL
authors.lastname: Nickerson
mesh_terms: D006334:Heart Function Tests; D006801:Humans