MHAT Nadezhda, Sofia, Bulgaria
Klinikum Klagenfurt; Abt. f. Hämatologie u. internistische Onkologie, Klagenfurt, Austria
Mdozs - Russe, Ruse, Bulgaria
Minami Kyushu National Hospital, Kagoshima, Japan
Miyagi Children's Hospital, Miyagi, Japan
Shiga Medical Center for Children, Shiga, Japan
St. Luke's University Health network, Bethlehem, Pennsylvania, United States
Institut Gustave Roussy; Dermatologie, Villejuif, France
Universitätsklinikum Regensburg; Klinik und Poliklinik für Dermatologie, Regensburg, Germany
Clinica San Borja; Instituto de Enfermedades Respiratorias EFEH, Lima, Peru
Clinica de Especialidades Medicas, Lima, Peru
Centro de Investigaciones Medicas/Hospital Maria Auxiliadora, San Juan de Miraflores, Peru
Kennedy Krieger Institute, Baltimore, Maryland, United States
University Hospitals, Cleveland, Ohio, United States
Ohio State University, Columbus, Ohio, United States
the First Hospital of Jilin University, Changchun, China
Changzhou First People's Hospital, Changzhou, China
Fudan University Shanghai Cancer Center, Shanghai City, China
Yale University, New Haven, Connecticut, United States
Levine Cancer Institute, Charlotte, North Carolina, United States
City of Hope, Duarte, California, United States
PRA International Clinical Pharmacology Center (EDS US Clinic), Lenexa, Kansas, United States
Hospital Emergencias Pediatricas; Unidad de Investigación Pediátrica, La Victoria, Peru
Clínica Anglo Americana-CENTRO DE INVESTIGACION PEDIATRIA CAA, San Isidro, Peru
Clinica Internacional, Sede San Borja; Unidad de Investigacion de Clínica Internacional, Lima, Peru
The University of Texas MD Anderson Cancer Center, Houston, Texas, United States
University Of Colorado, Aurora, Colorado, United States
Hospital Universitario Vall d'Hebron, Barcelona, Spain