%0 Letter %T An updated diagnostic range for serum free light chain kappa/lambda ratio using Freelite reagents on BN II or Optilite. %A Li B %A King R %A Chan B %A Rollo C %A Thompson S %A Florkowski C %J Pathology %V 56 %N 5 %D 2024 Aug 9 %M 38705800 %F 5.335 %R 10.1016/j.pathol.2024.02.006