As noted here was able to load the Rich Release Format (RRF) files from UMLS 2022AA Full. The technical details on each RRF file can be found here.
Then came across SemMedDB Database Details for version 4.2 or higher and noticed that these tables were not in the data loaded. They look very useful for doing biology information research, reminds me of the legal search LexusNexus.
Do you need that data included?
If so, is this the correct page to access them?
https://lhncbc.nlm.nih.gov/ii/tools/SemRep_SemMedDB_SKR/SemMedDB_download.html