Perioperative Optimization With Nutritional Supplements in Patients Undergoing Gastrointestinal Surgery for Cancer (PROGRESS): Protocol for a Feasibility Randomized Controlled Trial

Pablo Emilio Serrano   ^{1, 2 *} , MD, MPH, FACS ;   Sameer Parpia   ^{2, 3, 4 *} , PhD, MSc ;   Saeda Nair   ^{5 *} , MBBS ;   Leyo Ruo   ^{1, 2 *} , MD, FRCSC ;   Marko Simunovic   ^{1, 3, 4 *} , MD, MPH, FRCSC ;   Oren Levine   ^{3 *} , BEng, MSc, MD, FRCPC ;   Emmanuelle Duceppe   ^{6 *} , MD, FRCPC ;   Carol Rodrigues   ^{7 *} , BSc (hons)

¹ McMaster University, Department of Surgery, Hamilton, ON, Canada

² McMaster University, Department of Oncology, Ontario Clinical Oncology Group, Hamilton, ON, Canada

³ McMaster University, Department of Oncology, Hamilton, ON, Canada

⁴ McMaster University, Department of Health Research Methods, Evidence and Impact, Hamilton, ON, Canada

⁵ McMaster University, Department of Anesthesia, Hamilton, ON, Canada

⁶ Centre Hospitalier de l’Université de Montréal (CHUM), Department of General Internal Medicine, Montreal, QC, Canada

⁷ Juravinski Hospital, Hamilton Health Sciences, Hamilton, ON, Canada

*all authors contributed equally