title: Ring chromosome 1 in a newborn.
abstract: A newborn girl with ring chromosome 1 is described. The letter reports the chromosome analysis of peripheral blood lymphocytes with 46,XX,r(1)(p36.3q44) and evidence of ring instability in umbilical cord fibroblasts.
authors.forename: C
authors.initials: C
authors.lastname: Cutenese
authors.forename: M
authors.initials: M
authors.lastname: Mullett
authors.forename: M
authors.initials: M
authors.lastname: Hummel
authors.forename: S L
authors.initials: SL
authors.lastname: Wenger
mesh_terms: D000015:Abnormalities, Multiple / Q000235:genetics*; D002878:Chromosomes, Human, Pair 1; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D012303:Ring Chromosomes