About the Authors

Maggie Norris is a freelance science writer living in the San Francisco Bay area. As Fine Print Publication Services LLB, Maggie offers contract medical and technical writing services to clients in the pharmaceutical, biotech, and medical technology industries; patient care institutions; and research institutions.

Donna Rae Siegfried has written about pharmaceutical and medical topics for 15 years in publications, including Prevention, Runner’s World, Men’s Health, and Organic Gardening. She has taught anatomy and physiology at the college level. She is also the co-author of Biology For Dummies, 2nd Edition (Wiley).

Publisher’s Acknowledgments

Project Editor: Jennifer Tebbe

Acquisitions Editor: Stacy Kennedy

Copy Editors: Jennette ElNaggar, Jessica Smith

Technical Editors: Scott Houser, Sara Newton

Editorial Manager: Christine Meloy Beck

Editorial Assistants: Rachelle S. Amick, Alexa Koschier

Production Editor: Mohammed Zafar Ali

Cover Image: © Donald Iain Smith/Getty Images