Desiré D. Dubounet (born William Charles Nelson; 19 June 1951[1]) is an American alternative medicine inventor, filmmaker and performer currently living in Budapest.

[2][3] Dubounet developed the pseudoscientific Electro Physiological Feedback Xrroid, an energy medicine device that is considered to be dangerous to health and has been described as a scam.

[2][4] Dubounet developed the pseudoscientific EPFX device in the late 1980s which supposedly claimed could diagnose and eliminate diseases including AIDS and cancer.

[4] Some people died after using the EPFX system instead of seeking or continuing medical care.

[6] In 1992 the United States Food and Drug Administration ordered Dubounet to stop claiming that the EPFX could diagnose or cure diseases, but she did not; in 1996 she was indicted on nine counts of felony fraud, though none were in relation to the EPFX.