Dr. Wan-Xi Yang (the third from the left to right, the third row from the front) attended the Symposium on Frontiers in Epithelial Cell Biology Research which was hold during Nov. 27-28 in Shenzhen. This symposium was organized by the Epithelial Cell Biology Research Center of Chinese University of Hong Kong. Dr. Chan Hsiao Chang (the third from the left to right, the second row from the front) is the director of this center.