@CNN: A personalized cancer vaccine is safe and may lengthen the lives of ovarian cancer patients, a small clinical trial has found https://t.co/aowyRVYYyX https://t.co/U9pPPwwNjm

@CNN: A personalized cancer vaccine is safe and may lengthen the lives of ovarian cancer patients, a small clinical trial has found https://t.co/aowyRVYYyX https://t.co/U9pPPwwNjm