Robert B. Tallitsch, Ph.D.                      .
Augustana College                                  .
Rock Island, Illinois                               . 

Ronald S. Guastaferri, B.A., M.A.M.S. .
Art Coordinator and Illustrator            .

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License, except where otherwise noted.

This text was originally published by Mosby, Inc., an affiliate of Elsevier Inc. All rights have been reverted to the original author.

©2021, 2009.