# Histocompatibility testing--Congresses { "id": "S2009126372", "title": "Histocompatibility testing--Congresses", "url": "/topics/S2009126372", "kind": "topic-directory", "aeo_cohort": "topic-directory", "provider": "lcsh", "revision": "51d5c7d023cbc80a", "catalogue_revision": "f050b5d4780b1289", "numeric_address": "9225624137954109030", "address_version": "morton4x16-v1", "coordinates": [ 0, 479, 855, 36864 ], "answer_status": "Directory metadata; local answer requires separate source review", "truth_status": "Subject descriptor, not a factual answer or a demonstrated knowledge gap" } Directory metadata is not a factual answer or evidence of a global knowledge gap. Source: https://id.loc.gov/authorities/subjects/sh2009126372 No owner-reviewed local answer yet.