More specifically, {HEAD ~ the present invention} relates to a method of transforming the measurements into a corresponding current distribution map estimating the original sources and combining current distribution maps of two or more states of {TAIL ~ organ activity} into difference maps that reveal regions of the organ in which activity differs for the different states 
More specifically , { HEAD ~ the present invention } relates to a method of transforming the measurements into a corresponding current distribution map estimating the original sources and combining current distribution maps of two or more states of { TAIL ~ organ activity } into difference maps that reveal regions of the organ in which activity differs for the different states
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