I am generating RPE report which takes RTC parent work item as an input and fetch it's child workitems. Is there a way to get the total count for child work item in RPE?

For e.g, there are n number of tasks and  defects associated with the parent work item. I want the total count of task & Defects linked with parent RTC work item. <o:p> </o:p>

Is there a way to get that details in RPE? <o:p> </o:p>