Contributor(s):Author: M. D. John M. KirschAuthor: John M. KirschThis is a self-help book written by John M. Kirsch, M.D., an Orthopedic Surgeon for the common man. It is the result of 25 years of research into a new and simple exercise to prevent rotator cuff tears and impingement syndrome in the shoulder, as well as treating these conditions and frozen shoulder. Testimonials and research CT scan images are included as well as images of the exercises performed by models and patients.