I just called my Dad and spoke to him for a bit. He's doing okay, recovering from the first 2-day round of chemo, with another in a week or two. He's in good spirits, sounds great, and gets out walking every day, even climbed a small mountain yesterday. His excellent physical condition is a plus and it sounds like the oncologist sees that as a good sign. Apparently Wikipedia is a little out-of-date regarding lymphoma -- terms like Hodgkins and non-Hodgkins aren't used anymore. However his prognosis is apparently good, just rather early in the game yet to tell. And as a positive, the chemo they're using isn't making his hair fall out.