Notice that Dr Urschel has a previous study published by the prestigious Mayo Clinic. This gives him more than passing credibility.

An open-label study on the safety and clinical effectiveness of the PROMETA Treatment Program in treating methamphetamine dependence at Research Across America, Dallas, TX

Harold C. Urschel III, MD, MMA; Larry L. Hanselka, PhD; Irina Gromov, MD, PhD; Lenae White, MD; Michael Baron, PhD

■50-subject open-label study
■Craving, number of days abstinent as endpoints

Study published in Mayo Clinic Proceedings, October 2007;82(10):1170-1178