{"id":"S2006001736","label":"Electret ionization chambers","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2006001736","normalized_label":"electret ionization chambers","broader":["http://id.loc.gov/authorities/subjects/sh85067823"],"aliases":["EICs (Ionization chambers)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2006001736","provider":"lcsh","revision":"a993c38c5094e41f","taxonomy_revision":"f050b5d4780b1289","title":"Electret ionization chambers","url":"/topics/S2006001736","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"324263581455622692","address_version":"morton4x16-v1","coordinates":[0,478,17569,8192],"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}