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2. Rubber band ligation hemorrhoidectomy. Long-term results;Rothberg;Am Surg,1983
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4. The treatment of second degree haemorrhoids by injection, rubber band ligation, maximal anal dilatation, and haemorrhoidectomy: a prospective clinical trial;Cheng;Aust N Z J Surg,1981
5. Comparison of rubber band ligation and sclerosant injection for first and second degree haemorrhoids—a prospective clinical trial;Sim;Acta Chir Scand,1981