10-year-old London Hamilton has been through more in the past year than many people will in a lifetime: Fourteen rounds of chemotherapy, one month of radiation, and 65 blood, platelet and plasma transfusions — all in her fight against cancer. In December 2022, after suffering from consistent back pain and a seizure she couldn’t come out of, a scan revealed a tumor on her ribs and London was diagnosed with Ewing sarcoma. She began treatment immediately, and although she underwent chemotherapy as planned over the next few months, she encountered several complications after surgery to remove the tumor. Sepsis, a broken vertebrae, bone loss and radiation burn were additional obstacles that London had to face on top of an already stressful diagnosis. “That’s where a lot of her transfusions came from,” her mother, Carley, said. London struggled to get her counts back up after each setback, and she received consistent blood transfusions so that she could continue chemotherapy. In February...