title: Assessment of physical activity and energy expenditure in epidemiological studies.
authors.affiliation: Department of Biostatistics, University of Oslo, Blindern, N-0317, Oslo, Norway. d.s.thelle@medisin.uio.no
authors.forename: D S
authors.initials: DS
authors.lastname: Thelle
mesh_terms: D003625:Data Collection / Q000379:methods*; D004734:Energy Metabolism; D016021:Epidemiologic Studies; D015444:Exercise; D006801:Humans; D010809:Physical Fitness; D012107:Research Design