Outside his work in Vienna , Zielinski was named President of the Central European Cooperative Oncology Group since 1999 .
Outside his work in Vienna , Zielinski was became a member of the Executive Board of the European Society for Medical Oncology ( ESMO ) in 2014 .
Outside his work in Vienna , Zielinski was named President of the Central European Cooperative Oncology Group since 1999 and became a member of the Executive Board of the European Society for Medical Oncology ( ESMO ) in 2014 .