Retail $250. At 1,180 pages in full-color, Inflammation Mastery, 4th Edition (January 2016) contains Chapters 1-3 (as originally updated in versions published in 2014), updated Chapter 4 to include the antiviral and mTOR protocols, and expanded Chapter 5 to include Hypertension, Diabetes, Migraine, Allergy, and a complete revision of Fibromyalgia and Migraine, emphasizing brain inflammation and "metabolic collapse." Per our "Terms of Use/Sale" (linked at the bottom of each page), ICHNFM does not provide refunds after the receipt of intellectual property, whether in the form of books, courses, videos (etc); to purchase with option to return, use Amazon.com.