Haipeng Xiao, M.D. Ph.D. Professor of Endocrine, Chief Expert President, the First Affiliated Hospital of Sun Yat-sen University Member of American Thyroid Association (ATA) Member of Continuing Medical Education (CME) Committee, American Endocrine Society Member of Association for Medical Education in Europe (AMEE) Vice Secretary General, Clinical Teaching Committee of Medical Education, Ministry of Education, P. R. China Vice President, China Endocrine and Metabolism Association, Chinese Medical Doctor Association President, Guangdong Endocrine and Metabolism Association, Chinese Medical Doctor Association Vice President, Guangdong Endocrine Society, Chinese Medical Association Member of Editorial Board, Chinese Medical Journal Member of Editorial Board, Chinese Journal of Endocrinology and Metabolism Member of Editorial Board, Chinese Journal of Diabetes Member of Editorial Board, Cardiovascular Endocrinology