Dr. Clarke's book is required reading for our physician assistant students. Learning to assess stress illness should be part of every clinician's medical education. His book is an invaluable resource for teaching medical providers to evaluate and manage stress illness. -- Judy Ortiz, academic coordinator/associate director/associate professor, Pacific University School of Physician Assistant Studies, Forest Grove, OR Dr. Clarke is the most gifted person I have ever met in teaching about stress-related illness. -- Susan W. Tolle