{"id":"S89006237","label":"Brain--Magnetic fields","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh89006237","normalized_label":"brain--magnetic fields","broader":[],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh89006237","provider":"lcsh","revision":"72a278667abfc548","taxonomy_revision":"f050b5d4780b1289","title":"Brain--Magnetic fields","url":"/topics/S89006237","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"633960813463470658","address_version":"morton4x16-v1","coordinates":[0,21,14466,29696],"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}