I am grateful for the helpful suggestions and comments from the many students and health professionals who have used this web-based resource since it was first posted in 1999. I want to acknowledge the inspiration I received from my Ph.D. advisor, Dr. Paul Johnson, who taught me by his example to strive for excellence in both teaching and research. I am also grateful to the other physiology faculty at the University of Arizona in the early 1970's for their contagious love and enthusiasm for physiology. Special gratitude is reserved for my wife Karen, our four sons, and my parents who have encouraged me in so many ways to pursue my life dreams. Finally, I want to thank God for being the One who enables me.
Richard E. Klabunde