title: Physiological responses of rats to intermittent high-altitude stress: effects of age.
mesh_terms: D000367:Age Factors; D000531:Altitude; D000818:Animals; D001273:Atmosphere Exposure Chambers; D001835:Body Weight; D006332:Cardiomegaly / Q000209:etiology*; D006452:Hemoglobinometry; D006454:Hemoglobins; D006909:Hydroxyproline / Q000378:metabolism*; D000860:Hypoxia / Q000401:mortality; D066298:In Vitro Techniques; D008297:Male; D009206:Myocardium / Q000378:metabolism*; D051381:Rats
chemical_list: D006454:Hemoglobins; D006909:Hydroxyproline