Dr. Mario Vaisman holds a medical degree from the Federal University of Rio de Janeiro (1973), a master's degree in Medicine (Endocrinology) from the Federal University of Rio de Janeiro (1980), and a PhD in Medicine (Endocrinology) from the Federal University of Rio de Janeiro (1986). He is currently a full professor at the Federal University of Rio de Janeiro and a member of the National Institute of Science and Technology for Translational Research in Health and Environment in the Amazon Region (INCT-INPeTAm). He has expertise in Medicine, with an emphasis on Endocrinology, focusing primarily on the following topics: subclinical hypothyroidism, Graves' disease, adult GH deficiency, thyroid cancer, and hypothyroidism.