Med. Klinik II, Nephrologie und med. Immunologie, Universitätsklinikum Aachen, Aachen, NRW, Germany
Erasme Hospital, Brussels, Belgium
CHU Brabois, Nancy, France
George Dumont Hospital, Moncton, New Brunswick, Canada
Hôpital Necker, Paris, France
Hôpital Pontchaillou, Rennes, France
Hôpital HFME - Groupement Hospitalier Est, Bron, France
British Columbia Children's Hospital, Vancouver, British Columbia, Canada
Emory University/Children's Healthcare of Atlanta, Atlanta, Georgia, United States
Alberta Children's Hospital, Calgary, Alberta, Canada
RTS Ltda H.U.V, Cali, Colombia
RTS Ltda STR del Valle, Cali, Colombia
RTS Ltda Versalles, Cali, Colombia
George Washington University Medical Center, Washington, District of Columbia, United States
University of Louisville, Louisville, Kentucky, United States
Kendle International, Inc. Drug Study Unit, Morgantown, West Virginia, United States