https://www.healthday.com/healthpro-news/conditions/shiitake-mushroom-in...
"The researchers observed increased ex vivo proliferation of γδ-T cells and natural killer (NK) T-cells (60 percent and two-fold increase, respectively; both P < 0.0001) with four weeks of mushroom consumption."
Natural killer T cells are the ones which fight cancer. Eating shiitake mushrooms often (daily) enhances NK T-cell action which may help in our fight against CML as well as other cancers.
(I use 7-10 mushrooms diced and sauteed in a bit of butter and used as a condiment with veggies as well as in soups. They taste great and has since become a habit)