Episode 45 of CRAMSURG - Clinical Research Appraisal and Methodology for Surgical Trainees. The paper for discussion is Morbidity After Mechanical Bowel Preparation and Oral Antibiotics Prior to Rectal Resection The MOBILE2 Randomized Clinical Trial JAMAsurg Mar 2024. The teaching topic is multi arm RCTs part 2 - factorial design. Brought to you by CRAMSURG www.cramsurg.org.