1. University of Maryland Medical Center, Internal Medicine, 22 S Greene St., Baltimore, MD 21201, USA
2. Tufts Medical Center, 800 Washington St., Boston, MA 02111, USA
3. Tufts Medical Center, Hematology/Oncology, 800 Washington St., Boston, MA 02111, USA
4. Tufts Medical Center, Infectious Disease, 800 Washington St., Boston, MA 02111, USA