Nasal ventilation is not the final word.
Bach
J R
JR
D006801:Humans; D007385:Intermittent Positive-Pressure Ventilation / Q000379:methods*; D009468:Neuromuscular Diseases / Q000628:therapy; D009666:Nose; D012131:Respiratory Insufficiency / Q000628:therapy; D014139:Tracheostomy