A rule processing method includes defining {HEAD ~ a target group} of {TAIL ~ patients} chosen from a group of existing patients 
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A rule processing method includes defining { HEAD ~ a target group } of { TAIL ~ patients } chosen from a group of existing patients
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH