{"id":"S85060053","label":"Helium-mercury lasers","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85060053","normalized_label":"helium-mercury lasers","broader":["http://id.loc.gov/authorities/subjects/sh85053309"],"aliases":["He-Hg lasers","Mercury-helium lasers"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85060053","provider":"lcsh","revision":"2b72646ec54c32d6","taxonomy_revision":"f050b5d4780b1289","title":"Helium-mercury lasers","url":"/topics/S85060053","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"866956415544198724","address_version":"morton4x16-v1","coordinates":[0,20,18343,21504],"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}