Institution: | Dan-Hua Ling, Wei-Ping Shi, Dan-Ping Lai, Yan-Zhen Zhang, Department of Comprehensive Dentistry, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310052, Zhejiang Province, ChinaYan-Hong Wang, Department of Comprehensive Dentistry, Jiangnan Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou 311221, Zhejiang Province, China |