title: [The manufacture and efficiency test of the supplimental oxygen equipment for individuals working at high altitude (author's transl)].
mesh_terms: D000531:Altitude; D000532:Altitude Sickness / Q000517:prevention & control*; D006801:Humans; D000860:Hypoxia / Q000517:prevention & control*; D010106:Oxygenators; D005082:Physical Exertion; D013481:Superoxides / Q000008:administration & dosage
chemical_list: D013481:Superoxides