¹ Department of Medical Biology, Genetics and Clinical Genetics, Faculty of Medicine, Comenius University, Bratislava, Slovakia ;

² Faculty of Public Health, Slovak Medical University, Bratislava ;

³ Slovak Society of General Practice, Department of Long Term Ill, Derer´s Hospital, University Hospital, Bratislava, Slovakia ;

⁴ Department of Long Term ill, Derer´s Hospital, University Hospital, Bratislava, Slovakia, Jurgos s.r.o., Outpatient Department of Gastroenterology, Bratislava