Preoperative or Postoperative Therapy for the Management of Patients With Stage II or III Rectal Cancer

This is a clinical practice guideline for adult patients with clinically resectable or resected stage II or III rectal cancer. The guideline examines the appropriate preoperative staging tests and the role of postoperative radiotherapy (RT) and/or chemotherapy (CT) for patients with resected stage II or III rectal cancer. The primary outcomes of interest are increase in overall survival and delaying local recurrence.