ACKNOWLEDGMENTS
I would like to thank my husband, Gary, and our children Sarah, Keren, Abigail, and Jonathan and
their families for their loving encouragement throughout the course of this project. Also, I would like
to express my appreciation to my editors, Grace Freedson and Del Franz, for their guidance during
the preparation of the manuscript.
Special thanks go to our son, Dr. Jonathan S. Martin, for his comments and suggestions for the
manuscript.
—Peggy J. Martin