This observation is in {HEAD ~ conflict} with {TAIL ~ the prior art} that taught that an increase in total TFA caused MFD 
This observation is in { HEAD ~ conflict } with { TAIL ~ the prior art } that taught that an increase in total TFA caused MFD
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH