Baldiwala, Aafrin S., and Mitesh R. Trivedi. “A Study of Analgesic Effect of Methylene Blue Injection in Post Conventional Haemorrhoidectomy”. International Surgery Journal 9, no. 8 (July 26, 2022): 1450–1454. Accessed November 10, 2025. https://www.ijsurgery.com/index.php/isj/article/view/8954.