1. Department of Nuclear Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, People’s Republic of China
2. Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, People’s Republic of China
3. Operating Room of Outpatient Family Planning, Nanjing Maternal and Child Health Care Hospital, Nanjing, People’s Republic of China