The double 'tails-up' capnograph.
Rassam
S
S
Hall
J
J
Mecklenburgh
J
J
D019296:Capnography / Q000295:instrumentation*; D004868:Equipment Failure; D005260:Female; D006801:Humans; D008875:Middle Aged; D016343:Monitoring, Intraoperative / Q000295:instrumentation*