[Manometric study of duodenal dysfunction in progressive systemic sclerosis].
D000293:Adolescent; D000328:Adult; D004386:Duodenum / Q000503:physiopathology*; D005769:Gastrointestinal Motility; D006801:Humans; D008365:Manometry; D012595:Scleroderma, Systemic / Q000503:physiopathology*