1. Department of Neurology; Kaohsiung Chang Gung Memorial Hospital; Chang Gung University College of Medicine; Kaohsiung Taiwan
2. Healthy Aging Research Centre and Department of Medical Imaging and Radiological Sciences; Chang Gung University; Taoyuan Taiwan
3. Department of Nuclear Medicine and Centre for Advanced Molecular Imaging and Translation; Chang Gung Memorial Hospital; Taoyuan Taiwan
4. Department of Nuclear Medicine; Kaohsiung Chang Gung Memorial Hospital; Chang Gung University College of Medicine; Kaohsiung Taiwan
5. Department of Radiology; Kaohsiung Chang Gung Memorial Hospital; Chang Gung University College of Medicine; Kaohsiung Taiwan