determining a nonlinear static function ƒp representing the sensitivity of the patient to {TAIL ~ a dosage} of {HEAD ~ the anesthesia drug} at steady state; and 
determining a nonlinear static function ƒp representing the sensitivity of the patient to { TAIL ~ a dosage } of { HEAD ~ the anesthesia drug } at steady state ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH