A method of maintaining {HEAD ~ viability} and functioning of {TAIL ~ a transplant} is also provided 
of
A method of maintaining { HEAD ~ viability } and functioning of { TAIL ~ a transplant } is also provided
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH