Here are some excellent sources of additional information:

www.ralphmoss.com

www.peopleagainstcancer.com

www.krebstherapien.de

www.neue-wicker-kliniken.de/onkologie

www.gesundwerden.at

www.dr-kroiss.at

www.drclark.net

www.kanker-actueel.n

www.cancure.org/dr_callebout.htm

www.whatreallyworks.co.uk   (search : Dr Callebout)