1. Noninvasive Ventilation
Bradley A. Yoder, MD 
Clinics in Perinatology 
Volume 43, Issue 4, Pages xix-xxii (December 2016)
DOI: /j.clp
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2. Fig. 1 Face mask in position with supporting harness.
(From Llewellyn MA, Tilak KS, Swyer PR. A controlled trial of assisted ventilation using an oro-nasal mask. Arch Dis Child 1970;45(242):453–9; with permission.)
Clinics in Perinatology  , xix-xxiiDOI: ( /j.clp )
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3. Fig. 2 The first infant treated in the Gregory Box in October 1971.
(From Dunn PM. The early use of neonatal continuous positive airway pressure (CPAP) in Bristol. WEMJ 2016;115(1):1–3; with permission.)
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4. Bradley A. Yoder, MD, Editor
Clinics in Perinatology  , xix-xxiiDOI: ( /j.clp )
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5. Haresh Kirpalani, BM, MSc, FRCPC, Editor
Clinics in Perinatology  , xix-xxiiDOI: ( /j.clp )
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