title: Swimming upstream.
authors.forename: David H
authors.initials: DH
authors.lastname: Wegman
authors.forename: Gregory R
authors.initials: GR
authors.lastname: Wagner
mesh_terms: D000063:Accidents, Traffic / Q000517:prevention & control*; D014943:Global Health / Q000592:standards*; D006284:Health Plan Implementation / Q000458:organization & administration*; D006293:Health Promotion / Q000379:methods*; D006801:Humans; D012449:Safety / Q000592:standards*; D014947:Wounds and Injuries / Q000517:prevention & control*