1. 1Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital;
2. 2School of Medicine,
3. 3Institute of Pharmacology; and
4. 4Department of Ophthalmology, Chang-Gung Memorial Hospital, and College of Medicine, Chang-Gung University, Taoyuan, Taiwan; and
5. 5Department of Medical Informatics, Institute for Medical Biometry and Informatics, Heidelberg University, Heidelberg, Germany
6. 6Institute of Hospital, and Health Care Administration, National Yang-Ming University, Taipei;