[1] Univ Hosp Ctr Rebro Zagreb, Zagreb, Croatia
[2] Real Hosp Portugues Beneficencia Pernambuco, Recife, PE, Brazil
[3] Univ Sao Paulo, Ctr Med Nucl, Sao Paulo, Brazil
[4] Fdn Arturo Lopez Perez, Santiago, Chile
[5] Univ Hosp Alexandrovska Med Univ, Sofia, Bulgaria
[6] Pretoria Acad Hosp, Pretoria, South Africa
[7] Inst Nacl Cancerol, Bogota, Colombia
[8] Sofia Canc Ctr, Sofia, Bulgaria
[9] Univ Sto Tomas, Manila, Philippines
[10] IAEA, A-1400 Vienna, Austria