Florence Wetzel is a versatile author who has written books in various genres, including thrillers, biographies and poetry. Her latest book, "Sara My Sara: A Memoir of Friendship and Loss," is about her close friend Sara, who showed incredible bravery when battling Glioblastoma.

How long do people live with glioblastomas? What is the longest documented glioblastoma survival rate? Duke University's Dr. Henry S. Friedman answers your frequently asked questions.