[1] Peking University School and Hospital of Stomatology,Department of Oral and Maxillofacial Surgery
[2] National Center of Stomatology & National Clinical Research Center for Oral Diseases,Central Laboratory
[3] Peking University School and Hospital of Stomatology,Department of Stomatology
[4] Xinqiao Hospital (the Second Affiliated Hospital),undefined
[5] Army Medical University,undefined