Clinical data confirms the model structure and is used to establish parameters and {HEAD ~ function forms} for {TAIL ~ individual patients} 
for
Clinical data confirms the model structure and is used to establish parameters and { HEAD ~ function forms } for { TAIL ~ individual patients }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL