Raise the alarm.
Campbell
S F
SF
Sellers
W F S
WF
D000764:Anesthesia, Closed-Circuit / Q000295:instrumentation*; D004869:Equipment Safety / Q000592:standards; D005062:European Union; D006801:Humans; D000860:Hypoxia / Q000517:prevention & control; D007431:Intraoperative Complications / Q000517:prevention & control; D010102:Oxygen Inhalation Therapy / Q000295:instrumentation*