Beijing Cancer Hospital, Beijing, China
Sun Yet-sen University Cancer Center, Guangzhou, China
Hospital das Clinicas - UFRGS, Porto Alegre, RS, Brazil
Hospital de Cancer de Barretos, Barretos, SP, Brazil
Hospital Amaral Carvalho, Jau, SP, Brazil
Hackensack University Medical Center; Pediatric Rheumatology, Hackensack, New Jersey, United States
Ann & Robert H. Lurie Children's Hospital of Chicago; Division of Rheumatology, Chicago, Illinois, United States
Cleveland Clinic Fndn, Cleveland, Ohio, United States
Kaiser Permanente - Vallejo, Vallejo, California, United States
New York Oncology Hematology, P.C., Albany, New York, United States
Wenatchee Valley Hospital & Clinics, Wenatchee, Washington, United States
Laiko General Hospital; Nephrology Div., Athens, Greece
General Hospital Of Athens G.Gennimatas; Nephrology, Athens, Greece
Uni Hospital of Alexandroupoli; Nephrology Dept., Alexandroupolis, Greece