1. The Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
2. Department of Ultrasound, Qingdao Municipal Hospital, Qingdao, Shandong, China
3. School of Basic Medicine, Qingdao University Medical Center, Qingdao, Shandong, China
4. Department of Endocrinology, Qilu Hospital of Shandong University, Jinan, Shandong, China
5. Department of Pathology and Laboratory Medicine, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada