title: Tenuous Tether.
authors.affiliation: From the Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge (E.R.E.); and the Cardiovascular Division, Brigham and Women's Hospital and Harvard Medical School, Boston (E.R.E., B.N.W.).
authors.forename: Elazer R
authors.initials: ER
authors.lastname: Edelman
authors.forename: Brittany N
authors.initials: BN
authors.lastname: Weber
mesh_terms: D015510:Clinical Medicine / Q000193:education; D004452:Echocardiography / Q000295:instrumentation*; D006326:Heart Auscultation / Q000266:history / Q000295:instrumentation* / Q000639:trends; D049672:History, 19th Century; D006801:Humans; D010817:Physician-Patient Relations; D019095:Point-of-Care Systems; D019023:Stethoscopes / Q000266:history / Q000706:statistics & numerical data