A visionary doctor bucks skepticism from the medical field, discovering a new way to use the immune system to help defeat cancer.
Correspondent Dave Iverson sets out on a personal journey to understand Parkinson's disorder, which affects one million Americans.
In My Father, My Brother and Me, correspondent Dave Iverson sets out on a personal journey to understand a disease that affects one million Americans, including members of his family. Along the way, Iverson explores the possible causes of Parkinson's, the ongoing search for a cure and the continuing controversy over embryonic stem cell science and speaks with actor Michael J. Fox about his experience living with this common neurological condition.