A simple modification of the Clausen harness for anaesthetic masks.
D000758:Anesthesia; D000769:Anesthesia, Inhalation / Q000295:instrumentation*; D000776:Anesthesiology; D000777:Anesthetics; D006801:Humans; D008397:Masks
D000777:Anesthetics
ANESTHESIA, INHALATION/apparatus and instruments