Well, I took my mom to this very soft spoken Dr back in December for her CLL. His name is Dr Kanti Rai and he is one of the leading CLL experts in the country! He developed the Rai staging system in the mid 1970's.
Rai Stage 0 - designated as a low risk stage
Rai Stages I and II - designated as intermediate risk stages
Rai Stages III and IV - designated as high risk stages
Fortunately, my mom is at Rai Stage 0 still after 5 years! So, this is comforting!!!