Private Practice Rheumatology, Merantzis, Agrinio, Greece
ATTIKO Hospital_4th University Internal Medicine Clinic, Haidari, Greece
General Hospital of Mytilini, Rheumatology, Mytilini, Greece
Dana Farber Cancer Institute, Boston, Massachusetts, United States
University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States
Arnold Palmer Hosp-Children, Orlando, Florida, United States
Pra International Group B.V, Groningen, Netherlands
University Miami, Miami, Florida, United States
Hopital du Bocage, Dijon, France
University of Alabama at Birmingham, Birmingham, Alabama, United States
Hopital Femme Mere Enfant; Medecine Physique et Readaptation Pediatrique - L'ESCALE, Bron, France
Hôpital Raymond Poincare; Serv. Neurologie et Réanimation pédiatriques - Centre réf. neuromusculaire, Garches, France
Hopital Jeanne De Flandre; CIC pediatrique, Lille, France
The Ohio State University, Columbus, Ohio, United States
UCSD - Moores Cancer Center, La Jolla, California, United States
Princess Margaret Cancer Center, Toronto, Ontario, Canada