spinal muscular atrophy, lower extremity-predominant, 2b, prenatal onset, autosomal dominant
spinal muscular atrophy, lower extremity-predominant, 2b, prenatal onset, autosomal dominant
spinal muscular atrophy, lower extremity-predominant, 2b, prenatal onset, autosomal dominant
spinal muscular atrophy, lower extremity-predominant, 2b, prenatal onset, autosomal dominant