{"id":"S85090895","label":"Nerve growth factor","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85090895","normalized_label":"nerve growth factor","broader":["http://id.loc.gov/authorities/subjects/sh85057532","http://id.loc.gov/authorities/subjects/sh85090896"],"aliases":["NGF (Nerve growth factor)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85090895","provider":"lcsh","revision":"fb0afbeafe1bc4b3","taxonomy_revision":"f050b5d4780b1289","title":"Nerve growth factor","url":"/topics/S85090895","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"326730893563675140","address_version":"morton4x16-v1","coordinates":[0,20,18825,15360],"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}