Department of Gastroenterology;
Varaždin General Hospital;
Varažin 42000;
Croatia;
Department of Microbiology and Parasitology;
Faculty of Medicine;
University of Rijeka;
Rijeka 51000;
Croatia;
Department of Gastroenterology;
Clinical Hospital Center Rijeka;
Rijeka 51000;
Croatia;
Department of Gastroenterology;
Faculty of Medicine;
Clinical Hospital Center Rijeka;
University of Rijeka;
Rijeka 51000;
Croatia;
Irritable bowel syndrome; Obstipation; Diarrhoea; Abdominal pain; Probiotic; Prebiotic; Symbiotic; Microbiota;