Ventilatory capacity at altitude and its relation to mask design.
D000531:Altitude; D001152:Arsenicals / Q000008:administration & dosage*; D019069:Cell Respiration; D006801:Humans; D008397:Masks; D012119:Respiration / Q000502:physiology*
D001152:Arsenicals; C100059:oxophenarsine
OXOPHENARSINE/administration; RESPIRATION/physiology