If 5-FU was used during surgery or if no anti-fibrotic agent was applied, 5 mg 5-FU daily can be injected in the 7–14 postoperative days.
If 5-FU was administered during surgery or if no anti-fibrotic agent was used, a daily dose of 5 mg 5-FU can be injected on the 7th to 14th postoperative day.