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An 6-year-old patient with suspected myopathy was examined. A biopsy of quadriceps sinister was performed. Electronmicroscopy analysis revealed normal structure of muscle fibers and nuclei with significant amount of connective tissue dividing muscle fibers into bundles . Folded myelin is visible in intramuscular nerves. The neuromuscular junction without secondary postsynaptic folds.
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Operational Program Digital Poland, 2014-2020, Measure 2.3: Digital accessibility and usefulness of public sector information; funds from the European Regional Development Fund and national co-financing from the state budget.