We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleIsotemporal substitution paradigm for physical activity epidemiology and weight change.AuthorsMekary RA; Willett WC; Hu FB; Ding ELPublicationAmerican journal of epidemiology, 2009, Vol 170, Issue 4, p519ISSN1476-6256Publication typearticleDOI10.1093/aje/kwp163