1. Department of Microbiology, Zhongshan School of Medicine, Key Laboratory for Tropical Diseases Control of the Ministry of Education Sun Yat‐sen University Guangzhou China
2. Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory Sun Yat‐Sen University Guangzhou China
3. Clinical Research Center, Department of Medical Records Management, Guanghua School of Stomatology, Hospital of Stomatology Sun Yat‐sen University Guangzhou Guangdong China