The quality of measurement.
D000328:Adult; D000769:Anesthesia, Inhalation; D002849:Chromatography, Gas; D003201:Computers; D004562:Electrocardiography; D000431:Ethanol / Q000032:analysis / Q000097:blood / Q000652:urine; D005740:Gases / Q000032:analysis*; D006371:Helium; D006801:Humans; D007259:Infrared Rays; D007834:Lasers; D008875:Middle Aged; D008991:Monitoring, Physiologic; D009356:Neon; D009609:Nitrous Oxide / Q000032:analysis; D010100:Oxygen / Q000032:analysis; D010991:Plethysmography; D012039:Regional Blood Flow; D012119:Respiration
D005740:Gases; D006371:Helium; D000431:Ethanol; D009356:Neon; D009609:Nitrous Oxide; D010100:Oxygen