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An unlicensed chiropractor and alternative health charlatan who was twice convicted of practising medicine without a licence. A self-proclaimed nutritionist, Donsbach sold various vitamin and nutrition supplements of uncertain value, and published various tracts on, and offered correspondence courses in, pseudonutrition. He has faced charges of misbranding drugs for sale, grand theft, unlawfully dispensing drugs as a cure for cancer and falsely representing a cure for cancer. He has been the administrator of the Hospital Santa Monica in Baja, Mexico, which specialises in cancer pseudo-therapies.