my grandafather was just diagnosed with stage 3b non small cell lung cancer. he has emphasema, and copd. he was a heavy smoker for years, and also worked in a paper mill where asbestos was found and was being removed when he first started working there. he's 71 years old, and is starting chemo, and radiation monday. none of the doctors have given us an answer when we ask about how long he has. so that's my question, about how long does he have?