 In member countries, organizations exist to organize competition in the Paralympic sports on levels ranging from recreational to elite (for example, Disabled Sports USA and BlazeSports America in the United States).The Paralympics developed from a rehabilitation program for British war veterans with spinal injuries.In 1948, Sir Ludwig Guttman, a neurologist working with World War II veterans with spinal injuries at Stoke Mandeville Hospital in Aylesbury in the UK, began using sport as part of the rehabilitation programs of his patients.