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