1. Biomedical Science Team and Research Center for Industry of Human Ecology Chang Gung University of Science and Technology Taoyuan City Taiwan
2. Department of Dentistry Chang Gung Memorial Hospital TaipeiTaiwan
3. Laboratory of Dental Pharmacology Toxicology and Material Biocompatibility Graduate Institute of Clinical Dentistry National Taiwan University Medical College TaipeiTaiwan
4. Department of Dentistry National Taiwan University Hospital Taipei Taiwan