# X-linked mental retardation { "id": "S99002289", "title": "X-linked mental retardation", "url": "/topics/S99002289", "kind": "topic-directory", "aeo_cohort": "topic-directory", "provider": "lcsh", "revision": "3a9c5eb8bb896606", "catalogue_revision": "f050b5d4780b1289", "numeric_address": "14412724148281689698", "address_version": "morton4x16-v1", "coordinates": [ 0, 23, 39582, 50176 ], "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/sh99002289 No owner-reviewed local answer yet.