{HEAD ~ An action} to be taken concerning one or more patients within {TAIL ~ the target group} of patients is defined, and an execution time for the action is scheduled 
{ HEAD ~ An action } to be taken concerning one or more patients within { TAIL ~ the target group } of patients is defined , and an execution time for the action is scheduled
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH