{"id":"S90003866","label":"Histaminergic mechanisms","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh90003866","normalized_label":"histaminergic mechanisms","broader":["http://id.loc.gov/authorities/subjects/sh85091095"],"aliases":["Histaminergic system"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh90003866","provider":"lcsh","revision":"0649ef7e4f221ca0","taxonomy_revision":"f050b5d4780b1289","title":"Histaminergic mechanisms","url":"/topics/S90003866","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"920005376676595266","address_version":"morton4x16-v1","coordinates":[0,21,30054,26624],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}