Hubert,
I might be able to suggest someone who can answer your questions. She is a VERY good doctor who has covered that issue a number of times in her classes.
She has been doing Q&A and teaching health which includes cancer prevention and education for many years. Although I am not a physician, I've taken hundreds of her classes, and have a bookshelf on the topics concerning cancer. Perhaps I can suggest one.
Feel free to PM me for details. I'm working tomorrow so I will likely get back after dark right after dinner.
To your health Hubert!
Happy camper
