Athletics Magazine
Cuppett M and Walsh KM. General Medical Conditions in the Athlete, 2nd Edition. St. Louis: Elsevier Mosby, 2012.
I came across this book and thought that I'd take a minute to offer my recommendation here at the blog.
This 2nd edition is written by two athletic trainer educators--one at the University of South Florida and the other at East Carolina University. It's a textbook aimed at athletic trainer students that covers gammut of health issues that confront athletes of all sorts. There are chapters devoted to diagnostic imaging and testing, pharmacology and drugs, common bedside procedures, and to medical conditions that affect each of the body's systems.
Although the book is aimed at health profession students, it's written at a level and in a style that make it accessible to athletes themselves. By far, it's the best single book I've seen that is devoted to medical conditions in athletes and could serve as a great home reference book.