The SIOG National Representatives (NRs) Committee is a strategic body within SIOG, playing a key role in connecting the organisation with members, institutions, and experts worldwide.

SIOG NRs work closely with SIOG committees to support the design, implementation, and evaluation of activities, helping ensure a coordinated and globally relevant approach across all SIOG initiatives.

Why become a National Representative (NR)?

SIOG’s work is built on strong collaboration and partnership. Recognising the importance of national contexts, SIOG aligns its activities with local capacities, resources, and clinical practices.

As highlighted by the World Health Organization in its report on ageing and health, population ageing requires coordinated and context-specific action. National Representatives play an important role in supporting this effort by strengthening the visibility of geriatric oncology and encouraging collaboration between oncologists, geriatricians, and other disciplines.

They also contribute to building relationships with health authorities and supporting the development of practical measures to improve cancer care for older adults, including strengthening the healthcare workforce. NRs help raise awareness of progress and challenges within their countries, taking into account the specificities of each health system.

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Become a SIOG NR

If your country does not currently have an appointed NR, you are invited to express your interest by contacting the SIOG Head Office.

Please note that applicants must be SIOG members and have been actively involved in the society for at least one year.

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SIOG Country Groups

SIOG Country Groups support National Representatives in strengthening collaboration and advancing geriatric oncology at the national level. If you are interested in joining or establishing a Country Group in your country, please contact the SIOG Head Office.

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National Representatives

  • Edmond Ang
    Edmond Ang
    New Zealand
  • Joyita Banerjee
    Joyita Banerjee
    India
  • Mark Baxter
    Mark Baxter
    United Kingdom (UK)
  • HOUDA Belfekih
    HOUDA Belfekih
    Tunisia
  • Julie Berkhof
    Julie Berkhof
    United States (US)
  • Rabia Boulahssass
    Rabia Boulahssass
    France
  • Oscar Calderon
    Oscar Calderon
    Chile
  • Wing Lok Chan
    Wing Lok Chan
    Hong Kong
  • Phichai Chansriwong
    Phichai Chansriwong
    Thailand
  • Lisa Cooper
    Lisa Cooper
    Israel
  • Filipe Coutinho
    Filipe Coutinho
    Portugal
  • Daniel Debattista
    Daniel Debattista
    Malta
  • Vérène Dougoud-Chauvin
    Vérène Dougoud-Chauvin
    Switzerland
  • Vasco Fonseca
    Vasco Fonseca
    Portugal
  • Laurentia Gales
    Laurentia Gales
    Romania
  • Carolina Goméz-Moreno
    Carolina Goméz-Moreno
    Mexico
  • Isabel González Gascón y Marín
    Isabel González Gascón y Marín
    Spain
  • Yervand Hakobyan
    Yervand Hakobyan
    Armenia
  • Anne Horgan
    Anne Horgan
    Republic of Ireland
  • In Gyu Hwang
    In Gyu Hwang
    South Korea
  • Osman İlhan
    Osman İlhan
    Turkey
  • Muhammad Islam
    Muhammad Islam
    Bangladesh
  • Mari Joanne G. Joson
    Mari Joanne G. Joson
    Philippines
  • Athanasios Karampeazis
    Athanasios Karampeazis
    Greece
  • Aziz Karaoglu
    Aziz Karaoglu
    Turkey
  • Theodora Karnakis
    Theodora Karnakis
    Brazil
  • Tomonori Mizutani
    Tomonori Mizutani
    Japan
  • Alex Mutombo Baleka
    Alex Mutombo Baleka
    Congo (Kinshasa)
  • Eline Naert
    Eline Naert
    Belgium
  • Demetris Papamichael
    Demetris Papamichael
    Cyprus
  • Małgorzata Pieniążek
    Małgorzata Pieniążek
    Poland
  • Sophie Pilleron
    Sophie Pilleron
    Luxembourg
  • Luciola Pontes
    Luciola Pontes
    Brazil
  • Schroder Sattar
    Schroder Sattar
    Canada
  • Arun Shahi
    Arun Shahi
    Nepal
  • Armin Shahrokni
    Armin Shahrokni
    United States (US)
  • Maria del Rosario Sifon
    Maria del Rosario Sifon
    Argentina
  • Wee-Kheng Soo
    Wee-Kheng Soo
    Australia
  • Reinhard Stauder
    Reinhard Stauder
    Austria
  • Barbara Van Leeuwen
    Barbara Van Leeuwen
    Netherlands
  • Marcus Vetter
    Marcus Vetter
    Switzerland
  • Ulrich Wedding
    Ulrich Wedding
    Germany
  • Manuela Zereu
    Manuela Zereu
    Brazil
  • Küronya Zsófia
    Küronya Zsófia
    Hungary