Read more about Bella Linz's story at storystudio.wtae.com/upmc-childrens-provides-patients-with-a-rare-resilience/. This video and article were produced by WTAE as part of their Health Hub sponsorship. To learn more about the Center for Rare Disease Therapy at UPMC Children's Hospital of Pittsburgh, please visit chp.edu/our-services/rare-disease-therapy.