AIEOP (Italy)

ANZCHOG (Australia and New Zealand)

BFM- A (Austria)

BFM-CH (Switzerland)

BFM- G (Germany)

BSPHO (Belgium)

Bulgaria

CCLG (U.K.)

CPH (Czech Republic)

Croatia

DCOG (The Netherlands)

EORTC-CLCG (Belgium and Porto in Portugal)

GATLA (Argentina)

GPLU (Ukraine)

HeSPHO (Greece)

HKPHOSG (Hong Kong)

HSPOH (Hungary)

INS (Israel)

JCCG (Japan)

NOPHO (Denmark, Estonia, Finland, Iceland, Latvia, Lithuania, Norway, Sweden)

PINDA (Chile)

PPLLSG (Poland)

SAHOP (Argentina)

SEHOP (Spain)

Serbia

SFCE (France)

Slovakia

Slovenia

TLL-SG Turkey

Uruguay