The relation of age to the numbers of lung free cells, lung weight, and body weight in rats.
D000375:Aging / Q000502:physiology*; D000818:Animals; D001835:Body Weight; D001980:Bronchi; D008168:Lung / Q000033:anatomy & histology* / Q000166:cytology; D009929:Organ Size; D051381:Rats; D012737:Sex Factors; D014132:Trachea