Tamer Özülker, MD, is Associate Professor of Nuclear Medicine at the University of Health Sciences (SBÜ), Okmeydani Training and Research Hospital, Istanbul, Turkey. He is a graduate of the Medical School of the University of Hacettepe, Ankara and completed his nuclear medicine residency at Okmeydani Training and Research Hospital. Dr. Özülker has published a number of peer-reviewed scientific articles in high-impact journals and is a co-editor of the 2015 Springer book Atlas of PET-CT Imaging in Oncology – A Case-Based Guide to Image Interpretation as well as a previous Atlas of Bone Scintigraphy. He serves as associate editor of the Okmeydani Medical Journal. His clinical and research interests include PET-CT, PET-MRI, and thyroid diseases.Mine Adas, MD, is Associate Professor of Endocrinology and Metabolism at the University of Health Sciences (SBÜ), Okmeydani Training and Research Hospital, Istanbul, Turkey. She is a graduate of the Istanbul University School of Medicine. She completed her internal medicine residency at Okmeydani Training and Research Hospital and then undertook her endocrinology training at Istanbul University School of Medicine, where she became a qualified endocrinologist in the year 2000. Dr. Adas has published a number of peer-reviewed scientific articles. Her clinical and research interests include thyroid, parathyroid, and suprarenal diseases. She is a member of the Turkish Society of Endocrinology and Metabolism, the Stem Cell and Stem Cell Therapy Association, and the European Society of Endocrinology and Endocrine Society.Semra Günay, MD, is a specialist in breast and endocrine surgery who currently works at the University of Health Sciences (SBÜ), Okmeydani Training and Research Hospital, Istanbul, Turkey. She is a graduate of the Istanbul University School of Medicine and completed her general surgery residency in the same faculty. She has published a number of peer-reviewed scientific articles and is one of the authors of the Turkish language book Trauma (ISBN 9789756395240). Dr. Günay has participated in the educational work of the Turkish Surgical Association and has worked as an instructor on postgraduate training courses in the field of endocrine surgery. She is coordinator and founder of Istanbul Endocrine Meetings (ISTET) and member of editorial board of Okmeydani Medical Journal.