Hello @rose1966. It sounds like your husband has a good plan of attack to clear his body of this cancer. How is his mental attitude? It can be so hard to stay positive but it is so important to not give up that hope.
I gained all my sources for mushrooms from that book. Further research and learning on my part supported those sources. Ms Sansouci had much training and experience and really did her job researching this topic. I purchase the Protect powder mix from Four Sigmatic online us.foursigmatic.com. They have their own coffee, tea, creamers, and hot chocolate as well. I also get single mushroom capsules from realmushrooms.com. I use an organic decaf coffee that is swiss water decaffeinated. I buy that online also.
I hope and pray that all goes well for your husband this month and during that long recovery.