RT Journal Article SR Electronic T1 Response to: ‘Circulating microbiome in blood of different circulatory compartments’ by Schierwagen et al JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 789 OP 790 DO 10.1136/gutjnl-2019-318601 VO 69 IS 4 A1 Hornung, Bastian Volker Helmut A1 Zwittink, Romy Danielle A1 Ducarmon, Quinten Raymond A1 Kuijper, Ed J YR 2020 UL http://gut.bmj.com/content/69/4/789.abstract AB