Wilkoszewski, E [Diagnostic difficulties in a case of systemic connective tissue disease in a 10-year-old boy]. [electronic resource] - Reumatologia 1971 - 399-406 p. digital Publication Type: Journal Article ISSN: 0034-6233 Subjects--Topical Terms: Antibodies, Antinuclear--analysisChildDermatomyositis--diagnosisDiagnosis, DifferentialElectromyographyHumansLupus Erythematosus, Systemic--diagnosisMaleScleroderma, Systemic--diagnosis