Wampler, David A A critical bridge. Impedance threshold devices enhance blood flow in hypotensive patients. [electronic resource] - JEMS : a journal of emergency medical services Dec 2014 - 20-4 p. digital Publication Type: Journal Article; Review ISSN: 0197-2510 Subjects--Topical Terms: Blood Pressure--physiologyCardiopulmonary Resuscitation--instrumentationCerebrovascular Circulation--physiologyEmergency TreatmentHeart Arrest--physiopathologyHemodynamicsHumansHypotension--physiopathologyRegional Blood Flow--physiologyShock--physiopathologyThorax--physiology