Yan-Zhong Chang is a Ph.D. professor in the Laboratory of Molecular Iron Metabolism, College of Life Science, Hebei Normal University, Tel: +86-311-80787502, fax: +86-311-80787502, e-mail: chang7676@163.com or yzchang@hebtu.edu.cn.
Hebei Normal University
Shijiazhuang, Hebei, China