Park JH, Kim JH, Ko SH, Park SJ.  Combining Endoscopic Submucosal Dissection and Adjuvant Chemoradiotherapy or Radiotherapy for Effective Management of Rectal Cancer with Deep Submucosal Invasion: A Case Series.  Korean J Gastroenterol 2024;84:230-234.  https://doi.org/10.4166/kjg.2024.088