Our paper on comparing the ATC-to-RxNorm mappings in various vocabularies, titled ATC-to-RxNorm mappings – a comparison between OHDSI Standardized Vocabularies and UMLS Metathesaurus, has been just published in the International Journal of Medical Informatics.
The full version is freely available at https://doi.org/10.1016/j.ijmedinf.2024.105777.