1. Division of Rheumatology, University of New Mexico, Albuquerque, NM, USA
2. Division of Rheumatology, Tufts Medical Center, Boston, MA, USA
3. Center for Complementary and Integrative Medicine, Division of Rheumatology, Tufts Medical Center, Boston, MA, USA
4. Health Sciences Library and Informatics Center, University of New Mexico, Albuquerque, NM, USA