RT Journal Article SR Electronic T1 Relationship between the gut and the spine: a pilot study of first-degree relatives of patients with ankylosing spondylitis JF RMD Open JO RMD Open FD EULAR SP e000437 DO 10.1136/rmdopen-2017-000437 VO 3 IS 2 A1 Amy S Kehl A1 Thomas J Learch A1 Dalin Li A1 Dermot P B McGovern A1 Michael H Weisman YR 2017 UL http://rmdopen.bmj.com/content/3/2/e000437.abstract AB