The Development of a Patient Reported Outcomes Measure Committed to the Watch-and-wait Program for Rectal Cancer

"During the Delphi exercise both patients and experts will participate in two anonymous online survey rounds where different items/outcomes will be presented that are possibly related to rectal cancer and the W\&W program. Both groups are asked to rate each item on a 9 point likert scale with respect to the importancy of the item.~After the two subsequent rounds, participants will be invited to attend a consensus meeting, where final consensus about the most important outcomes will be reached."