In {TAIL ~ some cases} {HEAD ~ the addition} of ceria has also been found to increase stabilization 
In { TAIL ~ some cases } { HEAD ~ the addition } of ceria has also been found to increase stabilization
REL TAIL TAIL TAIL TAIL TAIL TAIL HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH