We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleTutorial in Biostatistics: Evaluating the impact of 'critical periods' in longitudinal studies of growth using piecewise mixed effects models.AuthorsNaumova EN; Must A; Laird NMPublicationInternational journal of epidemiology, 2001, Vol 30, Issue 6, p1332ISSN0300-5771Publication typearticleDOI10.1093/ije/30.6.1332