On aherbal route

Canadian biologist Yaacov Ben-David and his Guizhou team are isolating TCM components for cancer research, Liu Xiangrui reports.

Since Canadian biologist Yaacov Ben-David put down roots in Southwest China's Guizhou province, he has been driven by a desire to understand how traditional Chinese medicine works.

Ben-David, 61, was born in Iran and received his PhD in molecular immunology from Hebrew University in Israel, in 1987.