1. Center for Salivary Gland Diseases; Department of Oral and Maxillofacial Surgery; Peking University School and Hospital of Stomatology; Beijing China
2. Department of Laboratory Animal Science; Peking University Health Science Center; Beijing China
3. Department of Physiology and Pathophysiology; Key Laboratory of Molecular Cardiovascular Sciences; Ministry of Education and Beijing Key Laboratory of Cardiovascular Receptors Research; Peking University School of Basic Medical Sciences; Beijing China