title: Hygiene Without Numbers.
authors.affiliation: Department of Environmental Epidemiology, Institute for Risk Assessment Sciences, Utrecht University, Yalelaan 2, 3584 CM Utrecht, The Netherlands h.kromhout@uu.nl.
authors.forename: Hans
authors.initials: H
authors.lastname: Kromhout
mesh_terms: D006801:Humans; D006920:Hygiene; D016272:Occupational Health; D018570:Risk Assessment / Q000379:methods*