B cell crossmatch:PrThr:Pt:Bld^Donor:Ord
b cell crossmatch:prthr:pt:bld^donor:ord
B cell crossmatch:Presence or Threshold:To identify measures at a point in time:Whole blood^Donor:Ordinal
b cell crossmatch:presence or threshold:to identify measures at a point in time:whole blood^donor:ordinal