*1.Please list your first name, last name, and email:(Required.)

First name:

Last name:

Email:

*2.What is your specialty?(Required.)

*3.Testing for ctDNA is commercially available for patients who have undergone resection of a colorectal cancer(Required.)

True

False

*4.A 64 year old male with no comorbidities has undergone resection of a colorectal cancer. Pathology revealed a pT3, pN1b (3/24 LNs) moderately differentiated adenocarcinoma. Post-operative ctDNA was undetectable.

The guideline-recommended next approach for this patient is:(Required.)

No adjuvant chemo

Adjuvant capecitabine

3 months of adjuvant CAPEOX

3 months of adjuvant FOLFOX