Mega Doctor News Mega Doctor News Diagnosed at just 4 months of age, Gerardo Cantu Hernández was one of the first patients at the Vannie E. Cook Children’s Cancer and Hematology Clinic. Gerardo was diagnosed in 2001 with bilateral retinoblastoma, in 2016 with osteosarcoma of the right tibia, and in 2019 with osteosarcoma of the … Continue reading Gerardo’s Story of Strength and Service