Indirect monitor of blood pressure.
D000776:Anesthesiology / Q000295:instrumentation; D001158:Arteries; D001794:Blood Pressure; D001795:Blood Pressure Determination / Q000295:instrumentation*; D001810:Blood Volume; D003082:Colectomy; D006801:Humans; D008991:Monitoring, Physiologic; D013997:Time Factors