To seek the information of famous surgeons of cerebrovascular malformation in China at present.

In Beijing Tiantan Hospital, many neurosurgeons can do this kind of operation, and the technical difficulty is generally not great. The surgeon should invite Zhang Junting, who is the first disciple of Academician Wang Zhongcheng, the founder of Tiantan Hospital, but it is not easy to invite him for surgery. Others can ask Shark Wang, Dong Zhang, Zhao Jizong, Zhao Yuanli, Jiang Tao, Zhang Liwei and other department directors and ward directors.