preferred_name: Russell's viper venom assay may be prolonged or normal, depending on the genetic defect
preferred_name_lc: russell's viper venom assay may be prolonged or normal, depending on the genetic defect
label: Russell's viper venom assay may be prolonged or normal, depending on the genetic defect
label_lc: russell's viper venom assay may be prolonged or normal, depending on the genetic defect