1. NMPA Key Laboratory for Clinical Research and Evaluation of Traditional Chinese Medicine, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China
2. Department of Periodontics, College of Dentistry, University of Illinois Chicago, Chicago, IL 60612, USA
3. Center for Wound Healing and Tissue Regeneration, University of Illinois Chicago, Chicago, IL 60612, USA
4. Colgate-Palmolive Company, Piscataway, NJ 08854, USA