Children's Oncology Services, Inc.(COSI), is a not-for-profit charitable corporation, dedicated to helping children, afflicted with cancer or leukemia, to lead a 'normal' life. The Mission: To provide positive, safe, and fun camping and other experiences for children and adolescents diagnosed with cancer and leukemia, as well as survivors of childhood cancer and leukemia, while benefiting volunteers and affected families. This mission is accomplished primarily through the One Step At A Time camps and other programs, by providing educational, social and physical development services to children with cancer, regardless of their ability to pay.