The pulmonary vasculature in normal cattle at sea level at different ages.
D000367:Age Factors; D000531:Altitude; D000818:Animals; D000831:Animals, Newborn; D002417:Cattle; D005333:Fetus; D005865:Gestational Age; D008168:Lung / Q000033:anatomy & histology; D011652:Pulmonary Circulation; D011667:Pulmonary Veins / Q000033:anatomy & histology*; D013194:Staining and Labeling