1. Hui-ling Wang:
Department of Neurology,Affiliated Hospital of Hebei University,
Baoding, Hebei, 071000,
P. R. China.
2. Ying-lei Li:
Department of Emergency,
Baoding First Central Hospital,
Baoding, Hebei, 071000,
P. R. China
3. Xiao-fang Li:
Department of Neurology,
Affiliated Hospital of Hebei University,
Baoding, Hebei, 071000,
P. R. China.
4. Zhi-zun Wang:
Department of Cardiolo
Affiliated Hospital of Hebei University,
Baoding, Hebei, 071000,
P. R. China