Links
[1] http://www.ncbi.nlm.nih.gov/omim/252900
[2] http://ghr.nlm.nih.gov/gene/SGSH
[3] http://www.ncbi.nlm.nih.gov/omim/252920
[4] http://ghr.nlm.nih.gov/gene/NAGLU
[5] http://www.ncbi.nlm.nih.gov/omim/252930
[6] http://ghr.nlm.nih.gov/gene/HGSNAT
[7] http://www.ncbi.nlm.nih.gov/omim/252940
[8] http://ghr.nlm.nih.gov/gene/GNS
[9] https://disorders.eyes.arizona.edu/references/genotype-phenotype-correspondence-sanfilippo-syndrome-type-b
[10] https://disorders.eyes.arizona.edu/references/genetic-heterogeneity-and-clinical-variability-sanfilippo-syndrome-types-b-and-c