1. Department of NeurologyBeijing Tian Tan Hospital, Capital Medical University, China
2. Department of CardiologyKailuan Hospital, Tangshan, China
3. Beijing Obstetrics and Gynecology HospitalCapital Medical University Beijing Maternal and Child Health Care Hospital, China
4. Department of Health CareKailuan Hospital, Tangshan, China
5. Department of NeurosurgeryWanye State University, Detroit, MI, USA
6. Department of RespiratoryKailuan Hospital, Tangshan, China
7. Department of Neurology The General Hospital of Chinese People’s Armed Police Forces, Beijing, China