Postnatal differentiation of terminal airways of the lung in the rat and the cat.
D000367:Age Factors; D000818:Animals; D000831:Animals, Newborn; D002415:Cats; D008168:Lung / Q000502:physiology / Q000648:ultrastructure*; D011650:Pulmonary Alveoli / Q000502:physiology / Q000648:ultrastructure*; D051381:Rats