Effect of breathing six per cent carbon dioxide and EGG changes in young and older healthy men.
D000375:Aging; D002245:Carbon Dioxide / Q000494:pharmacology*; D004562:Electrocardiography; D006801:Humans; D000860:Hypoxia; D008297:Male; D012119:Respiration
D002245:Carbon Dioxide
AGING; ANOXIA; CARBON DIOXIDE/pharmacology; ELECTROCARDIOGRAPHY