I've had follicular lymphoma for some time. My second treatment after relapse was radioimmunotherapy. It is thought that this treatment severely affected my bone marrow. Years later I required both an auto followed by and allo transplant in great measure to the poor quality and quantity of stem cells available for harvest. Luckily I'm currently in remission (2yrs since allo) trying to manage chronic GVHD. I know this is anecdotal but I am not a fan of this approach.