1. Department of Cadre Health Care, Navy General Hospital, Beijing, P.R. China.
2. Department of Experimental Hematology, Beijing Institute of Radiation Medicine, Beijing, P.R. China.
3. Gene Therapy Program, Department of Medicine, NorthShore Research Institute, Evanston, Illinois.
4. Breast Cancer Department, PLA 307 Hospital, Beijing, P.R. China.
5. Stem Cell Laboratory, Ningbo No. 2 Hospital, Ningbo, P.R. China.