title: Editorial: new problems for old in the respiratory system.
mesh_terms: D000328:Adult; D000375:Aging; D000768:Anesthesia, General; D006801:Humans; D008176:Lung Volume Measurements; D008875:Middle Aged; D010100:Oxygen / Q000097:blood*; D010313:Partial Pressure; D011650:Pulmonary Alveoli / Q000502:physiology; D011652:Pulmonary Circulation; D012123:Pulmonary Ventilation; D012126:Respiratory Dead Space
chemical_list: D010100:Oxygen