In {TAIL ~ some embodiments}, {HEAD ~ the virtual anesthesia monitor} is a virtual BIS monitor for producing a BIS value responsive to the combined BIS signal 
In
In { TAIL ~ some embodiments } , { HEAD ~ the virtual anesthesia monitor } is a virtual BIS monitor for producing a BIS value responsive to the combined BIS signal
REL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH