title: Challenge of the Arctic.
mesh_terms: D000328:Adult; D001110:Arctic Regions; D002980:Climate; D003080:Cold Temperature; D003624:Darkness; D006801:Humans; D008297:Male; D009013:Morale; D009326:Naval Medicine; D009664:Norway; D012621:Seasons; D013534:Survival; D014887:Weather