Filip, Rafał Filipecka-Tyczka, Dagmara, 2nd Department of Obstetrics and Gynecology, Centre of Medical Postgraduate Education, Warsaw, St. Sophia Hospital in Warsaw Filipiak, Eliza Filipiak, Krzysztof J. Filipowicz, Dorota Filus, Alicja Filus, Alicja, Department of Endocrinology, Diabetes and Radionuclide Treatment, Wroclaw Medical University, Wroclaw, Poland Firek-Pedras, Małgorzata Fiszer, Patryk, Department of General and Endocrine Surgery, Medical University of Warsaw, Poland Fiszer, Patryk, Department of General and Endocrine Surgery, Medical University of Warsaw Florczak, Elżbieta Florczak, Jolanta Florek, Ewa Florek, Ewa (Poland) Florescu, Alexandru Flotyńska, Justyna Foltyn, Wanda Foltyn, Wanda, Department of Pathophysiology and Endocrinology, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, Katowice Foltyn, Wanda Foltyn, Wanda Foltyn, Wanda, Department of Pathophysiology and Endocrinology, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, Katowice (Poland) Foltyn, Wanda Fonseca, Sara Fontoura, Manuel Forkasiewicz, Zdzisław