stgcmt_result id_sequence ups_req series_req content_item verify_observer rel_ups_perf_code rel_study_pcode location diff_task_attrs subscription study_query_attrs stgver_task sps_station_aet soundex_code series_query_attrs retrieve_task rejected_instance ian_task hl7psu_task global_subscription export_task mwl_item diff_task mpps ups instance series study patient patient_id uidmap metadata queue_msg issuer person_name dicomattrs code