I have suggested your book to a few of my frinds and co-workers. One of my neighbors is a biologist and after reading the first few chapters of the book, told me that she would feel more comfortable with the material if there had been citations. For instance, in saying that a university study showed this or that, she would like to see a citation on what university, what study, etc. Is there a more complete list of background to some of the claims made in the book?