code: protected String getDetail(T data) {
          String ien = getLogicalId(data);
          return detailRPC == null || ien == null || ien.isEmpty() ? null
                  : fromList(getBroker().callRPCList(detailRPC, null, patient.getIdElement().getIdPart(), ien));
      }
docs: Logic to return detail information for specified item.
  
  @param data Source for detail information.
  @return The detail information.