Looking at your past posts, I see that your father's oncologist did not recommend adjuvant therapy for your father following his R0 resection.
I checked my limited database developed from about a 9% sample of previous posts to these boards and found the following regarding adjuvant therapy for intrahepatic cc patients who had R0 resections.
From May 2001 to June 2008, 5 patients had no adjuvant therapy, 2 had chemo only and 1 had both chemo and chemoradiation.
From November 2008 to Sept 2012, 1 patient had no adjuvant therapy, 7 had chemo only, and 3 had chemo and chemoradiation. Chemoradiation included radiation combined with 5FU or Xeloda pills.
So, it appears from this limited data, that oncologists started changing their tune about adjuvant therapy being helpful to R0 patients around 2008.
Since mid-2008, the only oncologist (besides your dad's doctor) I have found who didn't recommend adjuvant therapy for an intrahepatic cc R0 patient, was associated with Mayo Clinic in Rochester, MN. Others who did were associated with Emory University Hosp., Atlanta, GA; Sherman Health, Elgin, IL; Kaiser; Cleveland Clinic, Cleveland, OH; University of Pittsburgh Medical Center, Pittsburgh, PA; a hospital in Lebanon; Jewish Barnes, St. Louis, MO; Kings College Hospital, London, England; and Ochsner Hospital, Jefferson, LA.
Please be advised that any advice or information in my posts is my personal opinion only and is not intended nor implied to be a substitute for professional medical advice. ALWAYS seek the advice of your physician or other qualified health care provider.