title: Pulmonary function differences in normal smoking and nonsmoking, middle-aged, white-collar workers.
mesh_terms: D000328:Adult; D000367:Age Factors; D000403:Airway Resistance; D002849:Chromatography, Gas; D006801:Humans; D008168:Lung / Q000502:physiology*; D008297:Male; D008875:Middle Aged; D010100:Oxygen / Q000097:blood; D010993:Plethysmography, Whole Body; D011652:Pulmonary Circulation; D011653:Pulmonary Diffusing Capacity; D012907:Smoking; D013147:Spirometry; D014797:Vital Capacity
chemical_list: D010100:Oxygen