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There is little in the English literature on the incidence of scoliosis in cerebral palsy. James (1967) reported two cases ofscoliosis in children with cerebral palsy in a series of 3,000 cases of scoliosis. Robson (1968) screened 152 adolescents and young adults with cerebral palsy and found structural scoliosis in I 52 per cent; in 4 per cent the(More)
The development of solar-powered high-altitude UAV has gained increasing attention in the recent years. Several aircraft have had successful flights in the stratosphere, but despite advances in lightweight design they can only carry small payloads compared to the total takeoff mass. This paper suggests to eliminate the need for a landing gear by landing on(More)
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