Maria Karystianou of Gracia, Greece, is defending the bioresonance devices she provides, stating they meet all necessary requirements. She claims research, including studies at the European Union level, indicates these machines are suitable even for private use. The controversy surrounds the widespread use of these devices in hundreds of medical practices across Greece. Karystianou also faces legal repercussions related to accusations of defamation connected to the debate over the technology's validity. The situation highlights a clash between alternative medicine practices and established medical regulations within Greece. Further investigation is needed to determine the efficacy and safety of these bioresonance devices, and the legal challenges will likely continue. The debate centers on whether these machines fall under medical device regulations or are permissible for personal wellness applications.