The Nature and Purpose of Disease Study Collection on MP3 Volumes 1-8 - This is the entire 8-volume collection of over 16 hours of reading, analysis study and commentary for this remarkable book. For those who need a complete resetting of their understanding of health and methods of disease prevention, this stands as a remarkable analysis which will save lives, extend longevity and save countless thousads of dollars from being wasted chasing medical procedures which have no chance of reversing the course of disease. Please take this study seriously, family. The whole set is specially discounted at only $20.00 (LIBMP3-3015All)