"Altitude sickness, unregulated drugs and medical gas enabled workers to become drug abusers/addicts"
abuse drug sickness addiction workers sick drugs gas medical worker drug-use drug-addiction addictions addict addicted abusers oxygen medical-ethics altitude kea mauna sickness-and-diseases sickness-and-health addicts medical-profession medical-research addiction-and-recovery drug-abuse sickly sickness-of-the-mind worker-rights drug-policy altitudes oxygen-of-life oxygen-theory