title: Biological age and its estimation. I. Studies of some physiological parameters in albino rats and their validity as biological age tests.
mesh_terms: D000375:Aging; D000818:Animals; D001011:Aorta / Q000378:metabolism; D001835:Body Weight; D003094:Collagen / Q000378:metabolism; D003300:Copper / Q000378:metabolism; D005260:Female; D006321:Heart / Q000033:anatomy & histology; D006339:Heart Rate; D008099:Liver / Q000201:enzymology; D008297:Male; D009132:Muscles / Q000033:anatomy & histology; D009929:Organ Size; D051381:Rats; D012737:Sex Factors
chemical_list: D003300:Copper; D003094:Collagen