Effect of more vs less frequent follow-up testing on overall and colorectal cancer–Specific mortality in patients with stage II or III colorectal cancer the COLOFOL randomized clinical trial
IMPORTANCE Intensive follow-up of patients after curative surgery for colorectal cancer is common in clinical practice, but evidence of a survival benefit is limited. OBJECTIVE To examine overall mortality, colorectal cancer–specific mortality, and colorectal cancer–specific recurrence rates among patients with stage II or III colorectal cancer who were randomized after curative surgery to 2 alter