[1] Fujian Med Univ, Affiliated Hosp 2, Dept Neurosurg, Quanzhou, Peoples R China
[2] Inner Mongolia Univ Nationalities, Clin Med Sch 2, Yakeshi, Peoples R China
[3] Shandong Univ Tradit Chinese Med, Key Lab Tradit Chinese Med Class Theory, Minist Educ, Jinan, Peoples R China
[4] Gannan Med Univ, Lab Prevent & Treatment Cardiovasc & Cerebrovasc, Minist Educ, Ganzhou, Peoples R China
[5] Univ Hosp Cologne, Dept Neurosurg, Cologne, Germany