Avalanches, air pockets, and advertisements.
Fontanarosa
P B
PB
Rennie
D
D
D000329:Advertising; D000574:American Medical Association; D001237:Asphyxia / Q000517:prevention & control*; D004190:Disasters; D006801:Humans; D009051:Mountaineering; D011643:Publishing; D012865:Skiing; D012914:Snow; D014481:United States; D012122:Ventilators, Mechanical