ISST – Institute for Special Systemic Therapy

The ISST was founded in 1984 by Dr. Klaus-J. Berndsen and Sabine Berndsen in Unna. Under the influence of many years of therapeutic experience, consistent research activities, cooperation with universities, clinics and international specialists, Berndsen/Berndsen developed new diagnostic and therapeutic methods, as well as technical aids for sick and disabled people.