When one doctor at Johns Hopkins Children's Center tells her young patients, "I know what you're going through," she truly does. When Kathryn Smith was 17, she got very sick. "I had cirrhosis of the liver that had not been picked up which is not totally uncommon," Smith said. What is uncommon is how her life came full circle. Needing a liver transplant at the age of 18 was just the beginning of her journey.