has material basis in germline mutation in NAGLU mucopolysaccharidosis type 3B https://github.com/monarch-initiative/mondo/issues/4521 https://github.com/monarch-initiative/mondo/issues/4948 https://github.com/monarch-initiative/mondo/issues/5075 https://www.malacards.org/card/mucopolysaccharidosis_type_iiib MPS3B mucopolysaccharidosis type IIIB MPS III B mucopolysaccharidosis, type IIIB SCTID:59990008 MEDGEN:88601 Sanfilippo syndrome B N-acetyl-alpha-glucosaminidase deficiency NANDO:1200102 DOID:0111394 Orphanet:79270 MPSIIIB Sanfilippo syndrome type B OMIM:252920 A rare autosomal recessive lysosomal storage disease caused by deficiency of the enzyme N-acetyl-alpha-D-glucosaminidase. It is characterized by behavioral changes, sleep disturbances, and mental developmental delays. MPS IIIB icd11.foundation:117303909 mucopolysaccharidosis type 3B GARD:0007072 NCIT:C84898 Mucopoly-saccharidosis type 3B MONDO:0009656 UMLS:C0086648 NANDO:2201175 Sanfilippo B mucopolysaccharidosis type 3 lysosomal storage disease with skeletal involvement