Hello Rita,
Your Family is so lucky to have you and your help, even if from afar.
If this was my husband I would be very happy with the treatment plan. This fact that he has positive nodes, even though now removed, means he should be treated with chemo and radiation. As Christine has stated above this follows the NCI guidelines.. This is an aggressive cancer and needs to be hit hard from the get go. You do not want to be facing a recurrence within a short time because you dont like the idea of chemo or rads. His Doctors"research" is correct.
I hope all goes well,
Tammy