- Chair, American Hospital MD Anderson Radiation Treatment Center –Istanbul
- Chair & Professor, Department of Radiation Oncology, Koc University, School of Medicine, Istanbul Turkey
- Adjunct Professor, University of Texas, M.D. Anderson Cancer Center, Department of Radiation Oncology, Houston, TX, USA
- Professor Selek was granted “First Annual M.D. Anderson Radiation Oncology Fellow Research Award” in 2003.
- Member of ASTRO, EORTC, Turkish Society of Radiation Oncology, Turkish Association of Lung Cancer and M.D. Anderson Cancer Center Alumni and Faculty Association.
- Turkish Society for Radiation Oncology Board Certification
- Turkish Society for Radiation Oncology Board Re-Certification
- Fellow of American Society for Radiation Oncology (FASTRO)
- Manuscript of the year award-Turkish Radiation Oncology Congress
- Over 40 publications and over 70 Peer-Reviewed Publications indexed in SCI & SCIE Journals.
