Željko is a member of the Governing Board and expert associate of the International Institute for Cannabinoids in Slovenia, as well as the CEO and operator of Internal and Intervention Medicine Centre in Maribor. He works as a pulmonologist and gastroenterologist at several different institutions. He is a member of different medical associations and societies in Slovenia and Europe. He obtained habitation as an assistant at the Faculty of Medicine in Maribor.
Željko is regularly patients with cannabinoids in health therapies, either individually or with cooperation from experts where there is more adequate legal regulation. Positive reactions from patients, a growing number of scientific, expert and clinical findings as well as numerous therapeutic possibilities have encouraged his deep interest in this area.