Abstract Background Spinal muscular atrophy (SMA) is mostly caused by homozygous deletions in the survival motor neuron 1 (SMN1) gene. SMN2. its paralogous gene. is a genetic modifier of the disease phenotype. https://safeersappliancers.shop/product-category/bosch-dig97im50b-serie-4-built-in-90cm-3-speeds-b-island-cooker-hood-stainless/