Child patients with cancer participate in an activity held to mark the International Childhood Cancer Day at Uganda Cancer Institute (UCI) in Kampala, Uganda, Feb. 15, 2021. The International Childhood Cancer Day which falls on Feb. 15 is marked with the purpose of raising awareness about childhood cancer and expressing support for children and adolescents with cancer, the survivors and their families. (Photo by Nicholas Kajoba/Xinhua)

Child patients with cancer participate in an activity held to mark the International Childhood Cancer Day at Uganda Cancer Institute (UCI) in Kampala, Uganda, Feb. 15, 2021. The International Childhood Cancer Day which falls on Feb. 15 is marked with the purpose of raising awareness about childhood cancer and expressing support for children and adolescents with cancer, the survivors and their families. (Photo by Nicholas Kajoba/Xinhua)