1. Department of Cord Blood Bank, Shengjing Hospital; China Medical University; Heping District, Shenyang, PR China
2. Department of dermatology; No.1hospital; China Medical University; Heping District, Shenyang, PR China
3. Department of Immunology; School of Basic Medical Science; China Medical University; Heping District, Shenyang, PR China
4. TNI Bio. Tech. Inc.; Orlando, FL USA