{Reference Type}: Review {Title}: Advancing understanding and treatment of spinal muscular atrophy with four SMN2 copies: a critical review. {Author}: Rangwala BS;Rangwala HS; {Journal}: J Neurol {Volume}: 271 {Issue}: 6 {Year}: 2024 Jun 4 {Factor}: 6.682 {DOI}: 10.1007/s00415-024-12296-2