title: Effectiveness of helmet non-invasive ventilation with external PEEP valves: key remains inside the helmet.
authors: A M
authors: AM
authors: Esquinas
authors: R
authors: R
authors: Consentini
authors: E
authors: E
authors: Pravinkumar
authors: Y
authors: Y
authors: Dikmen
mesh_terms: D006260:Head Protective Devices; D006801:Humans; D011175:Positive-Pressure Respiration / Q000295:instrumentation*