"I am scared, but I cannot give up as I have to save my father."

Luo Manlin, an 8-year-old girl in Shiquan, Shaanxi province, wrote in her diary as she decided to donate bone marrow to her father, who was admitted as a leukemia patient by the hospital in March. The father initially refused to put Luo, his only relative whose marrow matches his, at risk and let her have an operation.