Changes in ability, perceived difficulty and use of assistive devices in everyday life: a 4-year follow-up study in people with late effects of polio
Background - There are numbers of persons living in the community with late effects of polio, of which many develop new symptoms, but the course of progression is unclear. Objectives - To assess changes after 4 years in ability and perceived difficulty in persons with late effects of polio. Material and methods - Community dwelling persons from a polio clinic. Information was gathered by questionn