God bless you too and your Dad and good luck! They tried Gladiel
chemo wafers on my brothers last surgery without success. Don't
know anything about the gamma knife. This is a very aggressive
kind of cancer as you know. We were all wishing we let him skip
the last chemo and radiation treatments because they ended up
not working anymore and they really dragged him down too. So
you do what you can and tell him you love him about 100 times a
day.
Jack