Pf. Kyeong Jin Kim graduated from Korea University College of Medicine in 2009, where she also completed her master's and doctoral degrees. She advanced her training as a visiting scholar at Johns Hopkins Hospital from 2017 to 2019. Currently, she is an Associate Professor in the Division of Endocrinology and Metabolism at Korea University College of Medicine. Her primary research and clinical interests lie in thyroid disease, including hyperthyroidism, subclinical hypothyroidism, and thyroid cancer. Additionally, she is an active member of the Korean Thyroid Association's Clinical Guideline Committee and Academic Committee and the Korean Endocrine Society's Examination Committee and Training Committee.