Hemoconcentration at altitude.
D000293:Adolescent; D000311:Adrenal Glands / Q000502:physiology; D000328:Adult; D000367:Age Factors; D000368:Aged; D000531:Altitude; D001798:Blood Proteins / Q000032:analysis; D001810:Blood Volume; D001835:Body Weight; D006400:Hematocrit; D006454:Hemoglobins; D006801:Humans; D008297:Male; D008875:Middle Aged; D010100:Oxygen / Q000097:blood; D005082:Physical Exertion; D012965:Sodium Chloride / Q000032:analysis; D013542:Sweat / Q000032:analysis
D001798:Blood Proteins; D006454:Hemoglobins; D012965:Sodium Chloride; D010100:Oxygen