Vertical gradient of alveolar size in lungs of dogs frozen intact.
D000818:Animals; D004285:Dogs; D004562:Electrocardiography; D005615:Freezing; D006652:Histological Techniques; D008168:Lung / Q000033:anatomy & histology; D009929:Organ Size; D011187:Posture; D011312:Pressure; D011650:Pulmonary Alveoli / Q000033:anatomy & histology*