机译：Phenotypic Variation in Paediatric Inflammatory Bowel Disease by Age: A Multicentre Prospective Inception Cohort Study of the Canadian Children IBD Network
Univ Toronto, SickKids Hosp, 555 Univ Ave, Toronto, ON M5G 1X8, Canada;
Univ Ottawa, Childrens Hosp Eastern Ontario, Ottawa, ON, Canada;
Univ Alberta, Stollery Childrens Hosp, Edmonton, AB, CanadaUniv British Columbia, BC Childrens Hosp, Vancouver, BC, CanadaDalhousie Univ, IWK Hlth Ctr, Halifax, NS, CanadaUniv Calgary, Alberta Childrens Hosp, Calgary, AB, CanadaUniv Manitoba, Max Rady Coll Med, Winnipeg, MB, CanadaMcMaster Univ, McMaster Childrens Hosp, Hamilton, ON, CanadaUniv Montreal, CHU St Justine, Montreal, PQ, CanadaMem Univ, Janeway Childrens Hlth & Rehabil Ctr, St John, NF, CanadaUniv Western Ontario, Childrens Hosp Western Ontario, London, ON, CanadaMcGill Univ, Fac Med, Montreal Childrens Hosp, Montreal, PQ, Canada;
