My husband was diagnosed as colon cancer on Oct 4, 2018. Did a surgery for colon and removed 30cm colon and 6 lymph nodes, where 4 out of 6 were cancer cells and said its stage is 3c. His CEA reduced to 2.2 from 19.5. We did chemo with 8 round of cycle and the last one was on May 10, 2019. After thr...