| Affiliation: | 1. Research Program in Men's Health: Aging and Metabolism, Boston Claude D. Pepper Older Americans Independence Center for Function, Promoting Anabolic Therapies, Brigham and Women's Hospital, Harvard Medical School, , Boston, MA, 02115 USA;2. Howards Hughes Medical Institute, Center for BioDynamics, Boston University, , Boston, MA, 02115 USA;3. Division of Endocrinology and Metabolism, Charles Drew University of Medicine and Science, David Geffen School of Medicine at UCLA, , Los Angeles, CA, 90059 USA;4. Wyss Institute for Biologically Inspired Engineering, Harvard University, , Boston, MA, 02215 USA |
