title: Face Mask vs Helmet for Noninvasive Ventilation-Reply.
authors.affiliation: Section of Pulmonary and Critical Care, University of Chicago, Chicago, Illinois.
authors.forename: Bhakti K
authors.initials: BK
authors.lastname: Patel
authors.affiliation: Section of Pulmonary and Critical Care, University of Chicago, Chicago, Illinois.
authors.forename: Jesse B
authors.initials: JB
authors.lastname: Hall
authors.affiliation: Section of Pulmonary and Critical Care, University of Chicago, Chicago, Illinois.
authors.forename: John P
authors.initials: JP
authors.lastname: Kress
mesh_terms: D004867:Equipment Design; D006260:Head Protective Devices; D006801:Humans; D008397:Masks; D063087:Noninvasive Ventilation; D011175:Positive-Pressure Respiration; D012121:Respiration, Artificial; D012131:Respiratory Insufficiency