At 3, Peri hasn’t been hitting the gym, but she’s definitely feeling stronger. On March 21, she underwent a liver transplant at Children’s Hospital Colorado that has helped solve medical problems that began at birth with her diagnosis of biliary atresia, a rare and life-threatening disease of the liver and bile ducts. And though her condition wouldn’t have placed her high on the list of patients seeking potential deceased liver donors, Peri took a different route. She found a living donor — and she didn’t have to look far.