AZ Groeninge - Kennedylaan, Kortrijk, Belgium
L & L Research Choices, Inc., Miami, Florida, United States
Hospital Sao Vicente de Paulo, Passo Fundo, Rio Grande Do Sul, Brazil
SMIQ S. de R.L. de C.V., Queretaro, Mexico
Children's Center for Digestive Health Care, LLC, Atlanta, Georgia, United States
University Hospitals Cleveland Medical Center, Cleveland, Ohio, United States
Children's Center for Digestive Health Care, LLC, Atlanta, Georgia, United States
D&H National Research Centers, Miami, Florida, United States
Gastrointestinal Associates, PA, Flowood, Mississippi, United States
SI Divisional Clinical Hospital of Uzhgorod Station of ST&BA LZ Dep of Therapy SHEI Uzhgorod NU, Uzhgorod, Ukraine
Private Small Enterprise Medical Center Pulse, Vinnytsia, Ukraine
Odense Universitetshospital, Odense C, Denmark
Royal Melbourne Hospital, Melbourne, Victoria, Australia
UMHAT 'Tsaritsa Yoanna - ISUL', EAD, Sofia, Bulgaria
Semmelweis Egyetem, Budapest, Hungary