Postek, A, Department of Reproductive Histophysiology, Division of Reproductive Endocrinology and Pathophysiology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland Postępski, Jacek Potapińska, Olga, Department of Laboratory Diagnostics and Clinical Immunology of Developmental Age, Medical University of Warsaw, Poland Potencz, Elena Poweska, Aleksandra Pozarowska, Dorota Pozarowski, Piotr Pregel, Paola, University of Turin, Dipartimento di Patologia Animale, Grugliasco (TO), Italy Priebe, Waldemar Prisant, Nadia Provenzano, Salvatore Prusik, Magdalena Pruski, Dominik, Department of Gynecology I, Karol Marcinkowski University of Medical Sciences, Poznan Laboratory of Cervical Pathophysiology, Gynecology and Obstetrics Clinical Hospital, Karol Marcinkowski University of Medical Sciences, Poznan Pryczynicz, Anna Pryczynicz, Anna, Department of General Pathomorphology, Medical University of Białystok, Białystok, Poland Pryczynicz, Anna, Department of General Pathomorphology, Medical University of Białystok, Bialystok, Poland Pryczynicz, Anna, Medical University of Bialystok Pryczynicz, Anna Przybylska-Gornowicz, Barbara Przybylski, Grzegorz Przybylski, Marcin, Department of Gynecology I, Karol Marcinkowski University of Medical Sciences, Poznan Przybyszewska, Wieslawa Przybyszewska, Wieslawa Przybyszewska, Wiesława Przybyszewska, Wiesława, Department of Histology and Embryology Poznan University of Medical Sciences