title: Piecing together the problems in diagnosing low-level chromosomal mosaicism.
abstract: Low-level somatic chromosomal mosaicism, which usually arises from post-zygotic errors, is a known cause of several well defined genetic syndromes and has been implicated in various multifactorial diseases. It is, however, not easy to diagnose, as various physical and technical factors complicate its identification.
authors.affiliation: Center for Human Genetics, University Hospital Gasthuisberg, Catholic University of Leuven, Herestraat 49, 3000 Leuven, Belgium. Caroline.Robberecht@med.kuleuven.be.
authors.forename: Caroline
authors.initials: C
authors.lastname: Robberecht
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Fryns
authors.forename: Joris Robert
authors.initials: JR
authors.lastname: Vermeesch