Roma, welcome. Sorry to hear about your husband but glad you found this site.
As a word of general advice: encourage your husband to eat and eat and eat right now. He's going to lose weight during treatment and there will be times when he simply won't want to eat anything. I'm sure his doctors have said the same thing but it bears repeating.
As others will no doubt tell you too, focusing on the "survival chances" is something better avoided. Sure, we all have those thoughts, it's only natural. But wondering about statistics is ultimately, to my mind at least, a losing proposition. We're all different and we all react to treatment differently. It's easy to say "think positively"... but it really, really does help.
Ask any specific questions here at any time. There's bound to be someone who knows the answer!
Courage to you both.
David 2