This PR addresses issues introduced by commit accd3af which conflated permissible values for two concepts, specifying the target molecule for extraction_target and the lab method by which target molecule was extracted, into single enumeration, ExtractionTargetEnum.
This PR addresses issues introduced by commit accd3af which conflated permissible values for two concepts, specifying the target molecule for extraction_target and the lab method by which target molecule was extracted, into single enumeration, ExtractionTargetEnum.