title: Design and analysis of longitudinal studies of fetal size.
authors.affiliation: Medical Statistics Unit, Royal Postgraduate Medical School, London, UK.
authors.forename: P
authors.initials: P
authors.lastname: Royston
authors.forename: D G
authors.initials: DG
authors.lastname: Altman
mesh_terms: D016001:Confidence Intervals; D005314:Embryonic and Fetal Development; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D011247:Pregnancy; D012016:Reference Values; D012044:Regression Analysis; D016216:Ultrasonography, Prenatal / Q000379:methods