http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
"An ongoing research project of the Kennedy Institute, Center for Bioethics at Georgetown University."
Supported in part by NIH grant LM 01702 from the National Library of Medicine.
Includes as a section: Bioethics thesaurus, which is also published independently.