The method 1, wherein the data is acquired from multiple leads and wherein the quantitative indicator is {HEAD ~ a composite average} of {TAIL ~ coefficients} calculated from the multiple leads 
The method 1 , wherein the data is acquired from multiple leads and wherein the quantitative indicator is { HEAD ~ a composite average } of { TAIL ~ coefficients } calculated from the multiple leads
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH