title: The case-crossover study: a novel design in evaluating transient fatigue as a risk factor for road traffic accidents.
authors.affiliation: Liberty Mutual Research Institute for Safety, Center for Injury Epidemiology, 71 Franklin Road, Hopkinton, MA 01748, USA. david.lombardi@LibertyMutual.com
authors.forename: David A
authors.initials: DA
authors.lastname: Lombardi