OUR TEAM:
In our work we focus on the research, teaching and development of quality standards in hyperthermia treatment. In a day clinic setting (no inpatient admission required), we have several treatment places for whole-body hyperthermia (“fever therapy”) with reflection-scattered and water-filtered infrared radiation according to Heckel and Ardenne and the currently most modern deep hyperthermia systems in Austria. The combination of immunotherapy, fever therapy in connection with hyperthermia has opened up new ways and possibilities of cancer therapy for us.

Prof. Dr. Ralf Kleef
CEO & Founder
- Email: ralf.kleef@dr-kleef.at
- Tel: +43 1 585 73 11

Wilfried Riegler
Head of Office Department
- Email: office@dr-kleef.at
- Tel: +43 1 585 73 11 – 14

Mariann Linger
Head of Operations
- Email: finance@dr-kleef.at
- Tel: +43 1 585 73 11 – 22