Department of Periodontology, School of Dentistry, National Defense Medical Center and Tri-Service General Hospital, Taipei, Taiwan, ROC b Section of Dentistry, Zuoying Armed Forces General Hospital, Kaohsiung, Taiwan, ROC Department of Pathology, Zuoying Armed Forces General Hospital, Kaohsiung, Taiwan, ROC Department of Mechanical Engineering, National Taipei University of Technology, Taipei,...