Concurrent Chemotherapy and Radiotherapy Improves Sphincter Preservation without Significant Toxicity in Low Rectal Disease. The Insight, Dhaka, BD, v. 9, n. 3, p. 565–569, 2026. DOI: 10.5281/. Disponível em: https://bdjournals.org/insight/article/view/1370. Acesso em: 31 jul. 2026.