Mining work in high altitude.
D000222:Adaptation, Physiological; D000531:Altitude; D002306:Cardiac Volume; D004562:Electrocardiography; D006400:Hematocrit; D006454:Hemoglobins / Q000032:analysis; D006801:Humans; D006976:Hypertension, Pulmonary / Q000150:complications / Q000000981:diagnostic imaging; D000860:Hypoxia / Q000150:complications; D008297:Male; D008906:Mining; D009784:Occupational Diseases / Q000209:etiology; D010568:Peru; D011086:Polycythemia / Q000150:complications; D011859:Radiography
D006454:Hemoglobins