Institution: | Department of Oral Biology, School of Stomatology, The Fourth Military Medical University, Xi'an, China;;Department of Preventive Dentistry, School of Stomatology, The Fourth Military Medical University, Xi'an, China;;Department of Dentistry, 101 Hospital of People's Liberation Army, Wuxi, China;;and Department of Clinical Laboratory, Xijing Hospital, The Fourth Military Medical University, Xi'an, China |