1. Department of Neurology & National Clinical Research Center for Aging and Medicine, Huashan HospitalFudan University Shanghai China
2. Department of NeurologyThe First Affiliated Hospital of Sun Yat‐sen University Guangzhou China
3. PET Center, Huashan HospitalFudan University Shanghai China
4. Department of MedicineUniversity of Otago, New Zealand Brain Research Institute, and Brain Research New Zealand Christchurch New Zealand