A glycogen storage disease characterized by deficiency of hepatic phosphorylase kinase activity. [ url:https://www.ncbi.nlm.nih.gov/pubmed/17689125 http://purl.obolibrary.org/obo/ECO_0007645 url:https://pubmed.ncbi.nlm.nih.gov/25266922/ ]
Synonyms: Glycogen storage disease 9