Carol Thomas has been a full-time medical writer since 1987, when she completed an Honours B.Sc. in Human Biology at the University of Toronto. Over the past 17 years, she has written more than 500 articles, over 90 videos, and copy for dozens of other projects in a wide range of fields. She has at various times also been a  monthly columnist on medical ethics, a trade journal News Editor, a videoscript and print editor, and a panelist for the Health Law section of the Canadian Bar Association (Ontario).

Debra L. Beck graduated magna cum laude from George Washington University with an Honors B.A. in Psychology. She has worked as a research assistant in emergency medicine at the George Washington University Medical Center, and later in cognitive neuroscience at the National Institutes of Health. She also held the position of NIH clinical trials coordinator at the New York Eye and Ear Infirmary. She has been a full-time medical writer since 2000, with a strong specialization in ophthalmology and interventional cardiology.