1. Vanderbilt Institute for Clinical and Translational Research, Vanderbilt University Medical Center , Nashville, Tennessee, USA
2. Department of Biomedical Informatics, Vanderbilt University School of Medicine , Nashville, Tennessee, USA
3. Stratametrics LLC , Salt Lake City, Utah, USA
4. HL7 Da Vinci Project , Ann Arbor, Michigan, USA
5. National Library of Medicine, National Institutes of Health , Bethesda, Maryland, USA