Instruct: Classify the given review as either positive or negative.
Query: A Simple But Correct Statement of Catholic Teaching

Kelly's book provides a helpful, and at the time of its publication, magisterially correct presentation of end of life issues from a Catholic perspective. This is an accessible summary that gives an overview of general principles. There is a later pronoucenemt by Benedict the XVI making giving food and hydration to patients in a permanent vegitative state a moral requirement which is something John Paul II had not done. There are ongoing debates about the theological coherence of thiss pronoucement, and many commentators beleive that Benedict departed from the major lines of Roman Catholic medical ethics. Readers wishsing to think through a more technical theological discussions of these debates will find Tollefsen's Artificial Nutrition and Hydration: The New Catholic Debate a helpful but difficult read.