http://www.all-natural.com/silver-1.html 
http://www.sotainstruments.com/produ...ver_pulser.asp
I know all this from doing 5 solid months of cancer research for my Dad.  Unfortunately unsucessful due to his agreesive hormonal cancer, but I know so much on diet and surpressed cancer cures now... 
Eat organic and seeds and raw if possible and get clean energised water...