Winczyk, Katarzyna, Department of Neuroendocrinology, Chair of Laboratory Medicine, Medical University of Lodz Winczyk, Katarzyna, Department of Neuroendokrynology, Medical University, Lodz, Poland Winczyk, Katarzyna, Department of Neuroendocrinology, Interdepartmental Chair of Laboratory Medicine and Molecular Diagnostics, Medical University of Lodz (Poland) Winczyk, Katarzyna Winowski, Jacek Wiśniewski, Piotr Wiśniewski, Piotr, Department of Endocrinology and Internal Medicine, Medical University of Gdańsk, Poland (Poland) Wiśniewski, Piotr Wiśniowiecka, Magdalena Witczak, Mariusz, College of Public Health, Zielona Góra, Poland Witek, Andrzej Witek, Joanna Witek, Joanna, Department of Neurosurgery, Military Institute of Medicine, ul. Szaserów 128, 04-141 Warsaw, Poland. Diabetes Outpatient Clinic, Institute of Mother and Child, ul. Kasprzaka 17a, 01-211 Warsaw, Poland (Poland) Witek, Przemyslaw Witek, Przemysław Witek, Przemysław, Department of Endocrinology and Isotope Therapy, Military Institute of Medicine, Warsaw, Poland (Poland) Witek, Przemysław, Department of Endocrinology and Isotope Therapy, Military Institute of Medicine, ul. Szaserów 128, 04-141 Warsaw, Poland Witek, Przemysław Witek, Przemysław (Poland) Witeska, Alojzy Witkowska, Agnieszka Witkowska, Agnieszka (Poland) Witkowska-Patena, Ewa Witkowska-Sędek, Ewelina, Department of Pediatrics and Endocrinology, Medical University of Warsaw, Poland Witkowski, Piotr