International Society of Paediatric Oncology (SIOP) logo International Society of Paediatric Oncology (SIOP)
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SIOP is the only global multidisciplinary society entirely devoted to paediatric and adolescent cancer. The society has over 2,600 members worldwide including doctors, nurses, other health-care professionals, scientists and researchers. Our members are dedicated to increasing knowledge about all aspects of childhood cancer.
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SIOP 2025
57th Congress of the International Society of Paediatric Oncology
10/20/2025 - 10/23/2025
SIOP 2026
58th Congress of the International Society of Paediatric Oncology
9/15/2026 - 9/18/2026
SIOP 2027
59th Congress of the International Society of Paediatric Oncology
Dates: TBD



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