[1] Natl Res Ctr, Human Genet & GenomeRes Div, Prenatal Diag & Fetal Med Dept, Cairo, Egypt
[2] Cairo Univ, Dept Obstet & Gynecol, Fetal Med Unit, Cairo, Egypt
[3] Dept Neuromuscular Disorders, London, England
[4] Natl Res Ctr, Human Genet & GenomeRes Div, Dept Human Cytogenet, Cairo, Egypt
[5] Natl Res Ctr, Human Genet & GenomeRes Div, Dept Human Genet, Cairo, Egypt
[6] Natl Res Ctr, Human Genet & GenomeRes Div, Med Mol Genet Dept, Cairo, Egypt
[7] Natl Res Ctr, Human Genet & GenomeRes Div, Dept Clin Genet, Cairo, Egypt
[8] UCL Queen Sq Inst Neurol, Dept Neuromuscular Disorders, London, England
[9] Alexandria Univ, Med Res Inst, Dept Human Genet, Cairo, Egypt
[10] MUST Univ, Dept Obstet & Gynecol, Fac Med, Cairo, Egypt
[11] Univ Skovde, Div Biomed, Skovde, Sweden