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Table 1 Routine surveillance protocol according the local guidelines

From: Surveillance for early stages of colon cancer: potentials for optimizing follow-up protocols

Months after operation Medical history and physical examination Complete blood count (CEA, CA 19–9 included) Contrast-enhanced abdominal ultrasound Abdominal and chest computed tomoghapy Colonoscopy
6 X X X   
12 X X   X X
18 X X X   
24 X X   X  
30 X X X   
36 X X   X X
48 X X X   
60 X X    X