VIDEO: NC Children's Promise TV - Ariel/Joshua part 5

Six-year-old Joshua Cooley first came to N.C. Children's Hospital at 3 days old and had a liver transplant at the age of 9 months. He and his sister, Ariel, chat with Dr. Daniel Lercher, a pediatrics resident, about why Dr. Lercher decided to become a doctor.

NC Children's Promise TV takes five patients and turns them to reporters for the day of the ninth annual NC Children's Promise Radiothon.