title: The ring 18 syndrome--a rare autosomal aberration.
mesh_terms: D002648:Child; D002675:Child, Preschool; D002869:Chromosome Aberrations / Q000175:diagnosis*; D025063:Chromosome Disorders; D002902:Chromosomes, Human, 16-18; D005260:Female; D006801:Humans; D007223:Infant