Yoshioka, K Randomized trial comparing anorectal myectomy and controlled anal dilatation for outlet obstruction. [electronic resource] - The British journal of surgery Dec 1987 - 1125-9 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial ISSN: 0007-1323 Standard No.: 10.1002/bjs.1800741217 doi Subjects--Topical Terms: AdultAgedAnal Canal--physiopathologyChronic DiseaseClinical Trials as TopicConstipation--etiologyDilatationFemaleHumansMaleMiddle AgedPressureRandom AllocationRectum--surgery