Chiba Children's Hospital, Chiba, Japan
Nara Medical University Hospital, Kashihara, Nara, Japan
Chiba University Hospital, Chiba, Japan
Altai Regional Clinical Hospital, Barnaul, Altay Region, Russian Federation
Bryansk Regional Hospital No. 1, Bryansk, Bryansk Region, Russian Federation
Kaluga Regional Clinical Hospital, Kaluga, Central Federal District, Russian Federation
Xiangya Hospital, Central South University, Changsha, China
The Children's Hospital of Zhejiang University School of Medicine, Hangzhou, China
Shandong Provincial Hospital, Jinan, China
1. Système National des Données de Santé (SNDS), Charenton-le-Pont, France
PHARMO, Utrecht, Netherlands
Estudio Nacional en Enfermedad Inflamatoria intestinal sobre Determinantes genéticos y Ambientales (ENEIDA), Madrid, Spain
Celerion, Tempe, Arizona, United States
PPD Development, LP, Austin, Texas, United States
Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States
Erasme, Bruxelles, Belgium
CHWAPI, Tournai, Belgium
UZA, Antwerpen, Belgium
Vancouver Allergy Clinic, Vancouver, British Columbia, Canada
Navy Hospital of Athens, Athens, Greece
Fakultni nemocnice v Motole, Praha, Czechia