Not sure of this paper you refer to BUT and here's my take...

Your Dad has Stage IV SCC and it's not HPV related. That responds less favorably to Tx than HPV+ SCC. It has already spread to his nodes. As far as oral SCC it doesn't get much worse. So IMHO I would insist on getting treated at the very best cancer center I could, regardless of distance or inconvenience.


David

Age 58 at Dx, HPV16+ SCC, Stage IV BOT+2 nodes, non smoker, casual drinker, exercise nut, Cisplatin x 3 & concurrent IMRT x 35,(70 Gy), no surgery, no Peg, Tx at Moffitt over Aug 06. Jun 07, back to riding my bike 100 miles a wk. Now doing 12 Spin classes and 60 outdoor miles per wk. Nov 13 completed Hilly Century ride for Cancer, 104 miles, 1st Place in my age group. Apr 2014 & 15, Spun for 9 straight hrs to raise $$ for YMCA's Livestrong Program. Certified Spin Instructor Jun 2014.