Institute of Traditional Chinese Medicine;
Academy of Traditional Chinese Medicine and Material Mediea of Jilin Province;
Changchun 130021;
P. R. China;
Department of Traditional Chinese Medicine Chemistry;
School of Traditional Chinese Medicine;
Beijing University of Chinese Medicine;
Beijing 100102;
P. R;
China;
Traditional Chinese Medicine College;
Tianjin University of Traditional Chinese Medicine;
Tianjin 300193;
P R. China;