This controlled study found extremely-high-frequency therapy to be an effective treatment in patients suffering from duodenal ulcers. Treatment consisted of 5-10 exposures, lasting 20-30 minutes, and making use of the G4-142 apparatus (53.5-70.0 GHz frequency range).
M.V. Teppone, Extremely-High Frequency Therapy of Duodenal Ulcer, Klin Med, 9(10), 1991, p. 74-77.