title: [Gas exchange function at the cellular level (AaDO2 and aADN2)].
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009584:Nitrogen; D010100:Oxygen / Q000097:blood*; D010313:Partial Pressure; D012129:Respiratory Function Tests / Q000379:methods*
chemical_list: D009584:Nitrogen; D010100:Oxygen