1. Program in Nutritional Metabolism, Mass General Hospital and Harvard Medical School, Boston, MA, USA
2. Cardiology Division and Duke Clinical Research Institute, Duke University School of Medicine, Duke University Hospital, Durham, NC, USA
3. Harvard T.H. Chan School of Public Health, Center for Biostatistics in AIDS Research, Boston, MA, USA
4. Division of Infectious Diseases, University of California, Los Angeles CARE Hospital and University of California, Los Angeles Medical School, Los Angeles, CA, USA
5. Yvonne L. Munn Center for Nursing Research, Mass General Hospital, Boston, MA, USA