In their 1995 study “The syndrome of autosomal recessive pontocerebellar hypoplasia, microcephaly, and extrapyramidal dyskinesia (pontocerebellar hypoplasia type 2): Compiled data from 10 pedigrees”, Barth et al. collected data from 10 unrelated family pedigrees.
In their 1990 article “The inherited syndrome of microcephaly, dyskinesia and pontocerebellar hypoplasia: a systemic atrophy with early onset”, Barth et al. reported on a neurodegenerative disorder observed in seven children from five related families.
