1. Childhood spinal muscular atrophy: controversies and challenges;Mercuri;Lancet Neurol,2012
2. Natural history in proximal spinal muscular atrophy. Clinical analysis of 445 patients and suggestions for a modification of existing classifications;Zerres;Arch Neurol,1995
3. Evaluation of SMN protein, transcript, and copy number in the biomarkers for spinal muscular atrophy (BforSMA) clinical study;Crawford;PLoS ONE,2012
4. Genotype-phenotype studies in infantile spinal muscular atrophy (SMA) type I in Germany: implications for clinical trials and genetic counselling;Rudnik-Schöneborn;Clin Genet,2009
5. Observational study of spinal muscular atrophy type I and implications for clinical trials;Finkel;Neurology,2014