It is NOT to late.
Prognosis is Horse hockey
I too was given 6 months to a year to live (seems to be the allopaths standard prognosis),I have outlived my prognosis by 1 year 8 months.
I am still battling this disease and slowly winning.
Tell your dad to get on here and talk to us,He will need a support line and lots of info.
My email is dragon29@earthlink.net if he wants to corrospond with another cancer fighter/survivor.
All or this stuff you are learning from your research,TAKE HEED,start now to prevent it from happening to you. Start living a Non-Toxic lifestyle.
God-bless and stay healthy,
Butch