Chełstowski, Kornel Chlebna-Sokół, Danuta Chmiel, Artur, Department of Cardiology, Hospital Rybnik, Poland Chmiel-Perzyńska, Iwona Chmielak, Mariusz Chmielewska-Kassassir, Małgorzata Chmielewski, Grzegorz Chmielewski, Marek Chmielik, Ewa Chmielik, Ewa, Department of Tumour Pathology Maria Sklodowska-Curie memorial Cancer Center and Institute of Oncology in Warsaw, Gliwice Branc (Poland) Chmielik, Ewa Chmielik, Ewa Chmielowska, Magdalena Chmura, Jan Chobot, Agata Chodakowska-Żebrowska, Małgorzata Chodecka, Aleksandra Chodurska, Renata, Department of Molecular Diagnostics, Holycross Cancer Centre, Kielce, Poland Chojnacki, Cezary Chojnacki, Cezary, Departament of Clinical Nutrition and Gastroenterological Diagnostics, Medical University, Lodz, Poland (Poland) Chojnacki, Jan Chojnacki, Jan, Department of Gastroenterology, Medical University, Lodz, Poland (Poland) Chojnowski, Jacek Cholewa, Krzysztof Choromańska, Barbara