IDIAP Jordi Gol, Barcelona, Cataluña, Spain
University of Washington Medical Center, Seattle, Washington, United States
Oslo University Hospital, Rikshospitalet, Oslo, Norway
Emory University Hospital, Atlanta, Georgia, United States
Tilda Research Inc., Irvine, California, United States
Beach Allergy and Asthma Specialty Group, A Medical Corporation, Long Beach, California, United States
Center for Clinical Studies, LTD.LLP, Webster, Texas, United States
Baylor University Medical Center, Dallas, Texas, United States
Princess Margaret Cancer Centre, Toronto, Ontario, Canada
WWCOiT im. M. Kopernika w Lodzi, Lodz, Poland
New Haven Clinical Research Unit, New Haven, Connecticut, United States
Madera Family Medical Group, Madera, California, United States
MedStar Health Research Institute - MedStar Georgetown University Hospital, Washington, District of Columbia, United States
Stanford University School of Medicine, Palo Alto, California, United States
Pfizer New Haven Clinical Research Unit, New Haven, Connecticut, United States
Clinique Saint-Pierre Ottignies, Ottignies, Belgium
CHU UCL Namur site Godinne, Yvoir, Belgium
Instituto Nacional de Câncer José de Alencar Gomes da Silva - INCA, Rio de Janeiro, RJ, Brazil
Regional Municipal Non-profit Enterprise "Chernivtsi Regional Clinical Hospital", Surgery Department, Chernivtsi, Ukraine
Dothan Surgery Center, Dothan, Alabama, United States
Gut P.C., dba Digestive Health Specialists of the Southeast, Dothan, Alabama, United States
Private Practice Richter, Rostock, Germany
Private Practice, Templin, Germany
Private Praxis, Duesseldorf, Nordrhein-westfalen, Germany