Wojewodzki Szpital Dzieciecy Im. J. Brudzinskiego, Bydgoszcz, Poland
SI Sceintific children health center RAMS, Moscow, Russian Federation
GOU VPO Rostovskiy state medical university Roszdrav, Rostov-na-donu, Russian Federation
Centro Oncologico Riojano Integral (CORI), La Rioja, Argentina
LKH-UNIV. KLINIKUM GRAZ; Klinische Abteilung für Onkologie, Graz, Austria
UZ Brussel, Brussel, Belgium
Hospital Metropolitano de Santiago, Santiago, Dominican Republic
Clinique Tivoli; Sce Radiotherapie, Bordeaux, France
Solca Guayaquil- Sociedad de Lucha Contra El Cáncer; Oncology, Guayaquil, Ecuador