Dr. Guichon's work focuses on issues arising at the intersection of law, health care, ethics, religion and journalism. She has authored academic articles, presented at academic conferences, and was senior editor of the book, The Right to Know One's Origins: The Best Interests of Children of Assisted Human Reproduction (Brussels: ASP).

A grant recipient and award-winning lecturer and seminar leader, Dr. Guichon is a frequent contributor to public debate and has founded five child health advocacy groups. Dr. Guichon is the recipient of the Canadian Medical Association Medal of Honour, and the Canadian Public Health Association's National Public Health Hero Award, and has been invited by the Canadian House of Commons and Senate to testify in public hearings on health matters.

A graduate of Yale University, she earned two law degrees at Oxford University where she was a Commonwealth Scholar, and a doctoral degree in law at the University of Toronto where she was elected Don of Hall of Massey College. She was called to the Bar of Ontario.

A native of Calgary, she has taught also at the Universities of Toronto and Brussels.