Bajor, Grzegorz Balcer, Natasza Balchanowski, Norbert Banas, Wioletta, Clinic of Vascular and Internal Diseases, Jan Biziel University Hospital No 2 in Bydgoszcz, Poland Banasiewicz, Tomasz Banaszkiewicz, Zbigniew Banbula, Marek Barć, Piotr Barc, Piotr, Department and Clinic of Vascular, General and Transplantation Surgery, Jan Mikulicz-Radecki Medical University Hospital, Wroclaw, Poland. Barć, Piotr Barczak, Anna Barczak, Anna, Vascular Surgery Clinic, Voivodeship Polyclinic Hospital in Kielce, Poland General and Vascular Surgery Department, Voivodeship Specialistic Hospital in Czestochowa, Poland (Poland) Barczak, Anna E., Vascular Surgery Clinic, Voivodeship Polyclinic Hospital in Kielce Barış, Özgür, Derince Education and Research Hospital, Department of Cardiovascular Surgery Bartlewicz, Joanna Bartoszczuk, Piotr Barud, Wojciech, Katedra i Klinika Chorób Wewnętrznych Uniwersytet Medyczny w Lublinie Barufi, Stelamarys Basiak, Olga Basta, Antoni Baysal, Ahmet Nihat, Cardiovascular Surgery Department, Konya Education and Research Hospital, Konya, Turkey Bałasz, Sebastian Becquemin, Jean-Pierre Bednarek, Agata Bednarek, Andrzej