The amount of cells is, in {HEAD ~ part}, dependent upon {TAIL ~ the patients} age, weight and medical profile 
The amount of cells is , in { HEAD ~ part } , dependent upon { TAIL ~ the patients } age , weight and medical profile
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH