title: Commentary: Clustering in Down syndrome.
authors.affiliation: Wolfson Institute of Preventive Medicine, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK. j.k.morris@qmul.ac.uk
authors.forename: Joan K
authors.initials: JK
authors.lastname: Morris
mesh_terms: D016000:Cluster Analysis; D004314:Down Syndrome / Q000453:epidemiology*; D004781:Environmental Exposure; D005260:Female; D006801:Humans; D008423:Maternal Age; D011247:Pregnancy; D015995:Prevalence