I would like to acknowledge Rusty Lubarksy, MS, a Physician Assistant at Shadyside Hospital who took many of the pictures for the Third Edition of this Atlas. Thanks also to Nizar Moayeri, MD, UMC Utrecht, Department of Anesthesiology for images in the Ultrasound chapters authored by Dr. Paul Bigeleisen.

Finally, I would like to recognize my Executive Secretary, Angela Felix, for her efforts with her organizational and copyediting contributions.