title: Update and perspective on noninvasive respiratory muscle aids. Part 2: The expiratory aids.
authors.affiliation: Department of Physical Medicine and Rehabilitation, University Hospital, UMDON-New Jersey Medical School, Newark 07103.
authors.forename: J R
authors.initials: JR
authors.lastname: Bach
mesh_terms: D000818:Animals; D006801:Humans; D012121:Respiration, Artificial; D012132:Respiratory Muscles / Q000502:physiology; D012138:Respiratory Therapy / Q000379:methods