BALDIWALA, A. S.; TRIVEDI, M. R. A study of analgesic effect of methylene blue injection in post conventional haemorrhoidectomy. International Surgery Journal, [S. l.], v. 9, n. 8, p. 1450–1454, 2022. DOI: 10.18203/2349-2902.isj20221899. Disponível em: https://www.ijsurgery.com/index.php/isj/article/view/8954. Acesso em: 10 nov. 2025.