1. Department of General Internal Medicine, Ambulatory Treatment, and Emergency Care (L.S., S.-C.J.Y.), The University of Texas M. D. Anderson Cancer Center, Houston, Texas 77030
2. Departments of Endocrine Neoplasia and Hormonal Disorders (S.-C.J.Y.), The University of Texas M. D. Anderson Cancer Center, Houston, Texas 77030
3. Department of Hematology (M.S.), Guangdong Provincial People’s Hospital, Guangzhou, 510089 People’s Republic of China
4. Department of Pathophysiology (H.Y., J.P.), Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510089 People’s Republic of China
5. Department of Oxigene, Inc. (D.C.), Waltham, Massachusetts 02451