A widely used sampling device in colorectal cancer screening programmes allows for large-scale microbiome studies. Issue 9 (21st September 2018) - Gudra, Dita; Shoaie, Saeed; Fridmanis, Davids; Klovins, Janis; Wefer, Hugo; Silamikelis, Ivars; Peculis, Raitis; Kalnina, Ineta; Elbere, Ilze; Radovica-Spalvina, Ilze; Hultcrantz, Rolf; Šķenders, Ģirts; et al.