By November he was choking on lung fluid and couldn't breathe without supplemental oxygen.
FORBES: Cover Story
It was still unclear whether climbers could survive at that height, or even whether supplemental oxygen would help at all.
ECONOMIST: Madness and its men
At 12, 500 feet, I had to breathe supplemental oxygen to stay alert.
FORBES: Bleary-Eyed In Bozeman
"The AAP recognizes that monitors may be helpful to allow rapid recognition of apnea, airway obstruction, respiratory failure, interruption of supplemental oxygen supply, or failure of mechanical respiratory support, " the group states.
ENGADGET: Researchers use wireless network to monitor breathing, could save lives
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