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Johanneke Portielje is professor of geriatric oncology at Leiden University Medical Center and the Haga Hospital in The Hague. She is an attending physician and member of the breast cancer team, the gynaecologic oncology team and the geriatric oncology team. She is involved in graduate medical education and head of the medical oncology senior residency program.

Her research interests include geriatric oncology and breast cancer. She is chair of GeriOnNe, the foundation for geriatric oncology in the Netherlands and is the national representative for SIOG. She is on the editorial board of the journal of geriatric oncology.

She received her medical degree at Leiden University and subsequently was a research fellow at the preclinical research department of Sandoz in Basel. She obtained her board certification in internal medicine at Leiden University and specialized in oncology and defended her thesis at the Daniel den Hoed Clinic / Eramus Medical Center Rotterdam.

She is the Local Chair, SIOG 2018 Scientific programme committee.

FileSIOG 2015 NR report - Netherlands