Correspondence: Clinical assessment versus scientific measurement.
D001784:Blood Gas Analysis; D002302:Cardiac Output; D002318:Cardiovascular Diseases / Q000175:diagnosis; D006801:Humans; D008722:Methods; D011183:Postoperative Complications / Q000175:diagnosis; D012121:Respiration, Artificial; D012131:Respiratory Insufficiency / Q000175:diagnosis*