Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A Must Have Guide and Reference Book for Doctors and Patients

This is an amazing threatise on antiaging. It is a MUST for patients contemplating any antiaging treatment. In addition,for physicians practicing antiaging medicine it is a great resource. I recommened this book whole heartedly to anyone in the antiaging field and to those considering adding this scope of medicine to their practice.As a practicing physician I have used this book many times as a reference. It has proven to be very helpful with all my HRT problem solving needs and it is also loaded with references which support the science of antiaging.Dr. Lionel BissoonAuthor, The Cellulite CureThe Cellulite Cure (TM)