As you walk down the hall, Dr. Foma states casually “We need to make sure we have that final arm wrestle soon, I know your rotation finishes soon, how’s tomorrow?” All you can do is nod... You feel like a ghost as you follow Dr. Foma into the examination room. You meet Mr. Randy Chop, a 63 year old male. Mr. Chop has Stage II DLBCL, It is in the cervical and axillary node regions on his left side and nowhere else. He is totally independent with no limitations physically, socially, or mentally. In fact the diagnosis was made incidentally. His most recent lab work demonstrated a Serum LDH of 150 U/L (Normal range: 140 - 240 U/L). You treat him with R-CHOP. What is his 4 Year survival?