_:vb50938562 "A neurodegenerative disease that is characterized by underdevelopment of the pons and cerebellum."^^ . _:vb50938562 . _:vb50938562 . _:vb50938562 . _:vb50938562 "url:https://ghr.nlm.nih.gov/condition/pontocerebellar-hypoplasia#definition"^^ . _:vb50938562 . _:vb50938562 .