“The first trip I remember taking was on the train from Virginia up to New York City, watching the summertime countryside rolling past the window. They used white linen tablecloths in the dining car in those days, and real silver. I love trains to this day. Maybe that was the beginning of my fixation”

“In 1970 I realized that there was negligible risk from x-rays but many radiographs had poor image quality so that the risk from a false negative was significant.”