Frequency and Impact of Thyroid Hormone Abnormalities in COVID-19: An Observational Study at the Peak of the Pandemic. - Komarnicki, Paweł; Rajewska, Alicja; Tomczak, Jolanta; Wrotkowska, Elżbieta; Krasiński, Zbigniew; Ruchała, Marek (Clinical Medicine Insights: Endocrinology & Diabetes, 2026)