title: Age and smoking dependency of the single breath oxygen test in healthy normal subjects.
mesh_terms: D000367:Age Factors; D005260:Female; D006801:Humans; D008297:Male; D009584:Nitrogen / Q000032:analysis; D012129:Respiratory Function Tests; D012907:Smoking; D013147:Spirometry; D014797:Vital Capacity
chemical_list: D009584:Nitrogen