1. Department of Periodontics School and Hospital of Stomatology Liaoning Provincial Key Laboratory of Oral Diseases China Medical University Shenyang China
2. Department of Oral Histopathology School and Hospital of Stomatology Liaoning Provincial Key Laboratory of Oral Disease China Medical University Shenyang China
3. Central Laboratory Department School and Hospital of Stomatology Liaoning Province Key Laboratory of Oral Disease China Medical University Shenyang China
4. Department of Stomatology Xiang'an Hospital of Xiamen University Xiamen China