Leśniewska, Monika Leszczyńska, Dorota Leszczyszyn-Pynka, Magdalena Letkiewicz, Magdalena Leuştean, Letiţia Lewandowska, Agnieszka Marta Lewandowska, Urszula Lewandowska-Jabłońska, Elżbieta Lewandowska-Lula, Magdalena Lewandowska-Stachowiak, Maria, Department of Paediatric Cardiology and Nephrology, Poznan University of Medical Sciences, Poland Lewandowski, Krzysztof C., Department of Endocrinology & Metabolic Diseases, Polish Mother’s Memorial Hospital - Research Institute, Lodz, Poland Lewandowski, Krzysztof C. Lewandowski, Krzysztof Lewandowski, Krzysztof C Lewandowski, Krzysztof C. Lewczuk, Anna Lewczuk, Anna Lewczuk, Anna Lewczuk, Anna, Department of Endocrinology and Internal Medicine, Medical University of Gdansk, Gdansk, Poland Lewczuk, Łukasz, St. Sophia Hospital in Warsaw Lewczuk-Myślicka, Anna Lewiński, A. Lewiński, Andrzej Lewiński, Andrzej Lewiński, Andrzej, Department of Endocrinology and Metabolic Diseases, Medical University of Lodz, Poland Department of Endocrinology and Metabolic Diseases, Polish Mother's Memorial Hospital — Research Institute, Lodz, Poland (Poland)