[1] Linkoping Univ, Div Inflammat & Infect, Dept Biomed & Clin Sci BKV, Linkoping, Sweden
[2] Linkoping Univ, Div Soc & Hlth, Dept Hlth Med & Caring Sci HMV, Linkoping, Sweden
[3] Linkoping Univ Hosp, Dept Gastroenterol, Cty Council Ostergotland, Linkoping, Sweden
[4] Linkoping Univ, Div Prevent, Dept Hlth Med & Caring Sci HMV, Linkoping, Sweden