title: Genetics of childhood spinal muscular atrophy.
mesh_terms: D000367:Age Factors; D001722:Birth Order; D002675:Child, Preschool; D005260:Female; D005808:Genes, Recessive; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008423:Maternal Age; D009136:Muscular Dystrophies / Q000453:epidemiology / Q000235:genetics*; D010641:Phenotype; D012744:Sex Ratio