Pattana-Arun , J., Weerayutthasilp , W., Tantiphlachiva , K., Sahakijrungruang , S. and Rojanasakul , A. 2006. Comparison of Postoperative Complications between Urgent and Elective Closed Hemorrhoidectomy: A Prospective Study. The Thai Journal of Surgery. 27, 1 (Mar. 2006), 26–29.