1. 1Myeloma Center, Winthrope P. Rockefeller Cancer Institute, Department of Internal Medicine, University of Arkansas for Medical Sciences, Little Rock, AR
2. 2Department of Hematology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
3. 3Little Rock Central High School, Little Rock, AR
4. 4College of Medicine, University of Arkansas for Medical Sciences, Little Rock, AR