[1] Karolinska Inst, Dept Med Epidemiol & Biostat, Stockholm, Sweden
[2] Orebro Univ Hosp, Dept Paediat, Orebro, Sweden
[3] Columbia Univ, Coll Phys & Surg, Celiac Dis Center, Dept Med, New York, NY USA
[4] Karolinska Univ Hosp, Gastroenterol Unit, Dept Gastroenterol Dermatovenereol & Rheumatol, Stockholm, Sweden
[5] Univ Paris Saclay, Dept Clin Epidemiol, Ctr Epidemiol & Populat Hlth, Villejuif, France
[6] New York Univ, Dept Med & Populat Hlth, Grossman Sch Med, New York, NY USA
[7] Karolinska Inst, Clin Epidemiol Div, Dept Med Solna, Stockholm, Sweden
[8] Stockholm South Gen Hosp, Sachs Children & Youth Hosp, Stockholm, Sweden
[9] Karolinska Inst, Dept Clin Sci & Educ Sodersjukhuset, Stockholm, Sweden
[10] Karolinska Inst, Div Nephrol, Danderyd Hosp, Dept Clin Sci, Stockholm, Sweden