title: [Diagnostic difficulties in Thomsen's myotonia in a 10-year-old-boy].
mesh_terms: D001706:Biopsy; D002648:Child; D003238:Connective Tissue / Q000473:pathology; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D009132:Muscles / Q000473:pathology; D009224:Myotonia Congenita / Q000175:diagnosis*
vernacular_title: Trudności rozpoznawcze miotonii Thomsena u 10-letniego chłopca.