has material basis in germline mutation in SMN1 spinal muscular atrophy, type III https://github.com/monarch-initiative/mondo/issues/4521 https://github.com/monarch-initiative/mondo/issues/6462 https://www.malacards.org/card/spinal_muscular_atrophy_type_iii spinal muscular atrophy-3 pediatric spinal muscular atrophy spinal muscular atrophy III spinal muscular atrophy, mild childhood and adolescent form spinal muscular atrophy, type III UMLS:C0152109 spinal muscular atrophy of childhood SMA type III KWS spinal muscular atrophy, type III, modifier of SCTID:54280009 spinal muscular atrophy, familial NANDO:1200006 spinal muscular atrophy type 3 MONDO:0009672 OMIM:253400 paediatric spinal muscular atrophy Kugelberg-Welander syndrome MEDGEN:101816 Kugelberg-Welander disease muscular atrophy, juvenile NORD:1342 juvenile spinal muscular atrophy SMA3 GARD:0000198 SMA 3 childhood spinal muscular atrophy ICD9:335.11 Proximal spinal muscular atrophy type 3 (SMA3) is a relatively mild form of proximal spinal muscular atrophy characterized by muscle weakness and hypotonia resulting from the degeneration and loss of the lower motor neurons in the spinal cord and the brain stem nuclei. Orphanet:83419 SMA type 3 Kugelberg Welander Syndrome NCIT:C118847 DOID:12376 SMA-III icd11.foundation:677572815 proximal spinal muscular atrophy