Altitude diseases.
D000222:Adaptation, Physiological; D000293:Adolescent; D000328:Adult; D000531:Altitude; D005260:Female; D006801:Humans; D000860:Hypoxia; D008297:Male; D008800:Mexico; D008881:Migraine Disorders / Q000209:etiology; D009051:Mountaineering; D013178:Sports Medicine; D013575:Syncope / Q000209:etiology