Acknowledgments

We would like to thank all the contributing authors for making this book possible. In addition, we would like to thank all the associate editors (with two additional associate editors) for their tireless efforts to ensure that the information in this book is clear and accurate. We wish to thank Sara Whynot for her editorial assistance, Christopher Hung and David Hung for the production of the images and videos. We also like to thank all of the McGraw-Hill editorial and production staff for their continuing support.

Orlando Hung, MD, FRCP(C)

Michael F. Murphy, MD, FRCP(C)