title: PERORAL DUODENAL BIOPSY IN PROGRESSIVE SYSTEMIC SCLEROSIS.
mesh_terms: D001706:Biopsy; D003933:Diagnosis; D004386:Duodenum; D006801:Humans; D045743:Scleroderma, Diffuse; D012594:Scleroderma, Localized; D012595:Scleroderma, Systemic
keywords: BIOPSY; DIAGNOSIS; DUODENUM; SCLERODERMA