{"id":"S94005118","label":"Pacemaker cells","description":"Here are entered works on cells that exhibit physiological pacemaker activity in excitable tissues, such as the heart and gastrointestinal smooth muscle.","source_url":"https://id.loc.gov/authorities/subjects/sh94005118","normalized_label":"pacemaker cells","broader":["http://id.loc.gov/authorities/subjects/sh85021678"],"aliases":["Biological pacemakers","Natural pacemakers","Pacemakers, Biological"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh94005118","provider":"lcsh","revision":"b9b9dc32182da0bc","taxonomy_revision":"f050b5d4780b1289","title":"Pacemaker cells","url":"/topics/S94005118","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10144569285138597412","address_version":"morton4x16-v1","coordinates":[0,22,27037,63488],"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}