{"id":"S85139500","label":"Ultrasonics in obstetrics","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85139500","normalized_label":"ultrasonics in obstetrics","broader":["http://id.loc.gov/authorities/subjects/sh85037502","http://id.loc.gov/authorities/subjects/sh85093768"],"aliases":["Obstetrical ultrasonic imaging","Obstetrical ultrasonics","Obstetrical ultrasonography","Obstetrical ultrasound"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85139500","provider":"lcsh","revision":"7ecb690c7ebe0d34","taxonomy_revision":"f050b5d4780b1289","title":"Ultrasonics in obstetrics","url":"/topics/S85139500","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9549957777703698944","address_version":"morton4x16-v1","coordinates":[0,20,19584,45056],"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}