"Named after Daniel Alagille (1925-2005), a French paediatrician, who first described it 9."
"Alagille syndrome is inherited in an autosomal dominant fashion with a mutation of the JAG1 (90%) and NOTCH2 (1-2%) genes, located on the short arm of chromosome 20. Microdeletion of 20p12 is seen in ~7.5% of patients 6."