title: Random sampling - is it worth it?
authors.affiliation: School of Public Health, Aarhus University, Aarhus, Denmark. jo@soci.au.dk
authors.forename: Jørn
authors.initials: J
authors.lastname: Olsen
mesh_terms: D015331:Cohort Studies; D003625:Data Collection / Q000379:methods*; D006801:Humans; D012107:Research Design / Q000592:standards*; D012494:Sampling Studies