ABC News correspondent Trevor Ault was inspired by Robin Roberts' advocacy for stem cell donation and decided to join the registry managed by NMDP. After signing up and sending a cheek swab, Ault was unexpectedly notified that he was a match for a middle-aged man with bone cancer living abroad. He traveled from California to Seattle in November to donate stem cells, with all expenses covered by NMDP. The donation process involved five days of injections to stimulate stem cell production, followed by a less-than-three-hour peripheral blood stem cell collection via apheresis, which Ault described as relatively pain-free. His story aims to encourage more young, healthy donors to join the registry, highlighting the urgent need for such donations to save lives, as most patients depend on strangers' contributions.