SGCG and autosomal recessive limb-girdle muscular dystrophy type 2C: Screening for the founder c.del521T mutation in SGCG gene may be at the top of diagnosis analysis as this form of severe childhood autosomal recessive muscular dystrophy (SCARMD) is the most frequent muscular dystrophy in Tunisia [89] and that most patients were homozygous for this mutation [60].