Two members of the seventh batch of Chinese medical team in Burkina Faso — Tie Bi, deputy director of the Department of Interventional Medicine of the First Hospital of Lanzhou University, and Yang Xiangxiang, the team's attending physician — assisted medical workers from CHU de Tengendogo in Burkina Faso in successfully performing cerebral angiography through the femoral artery for a patient with cerebral arteriovenous malformation. [Photo provided to chinadaily.com.cn]