Bicycle safety helmet usage in Berlin 1999: an observational study.
Böhning
Dankmar
D
Institute for Social Medicine, Joint Center for Humanities and Health Sciences, Free University Berlin, Humboldt University at Berlin. boehning@zedat.fu-berlin.de
Boose
Ruth
R
Kurzawski
Sandra
S
Saul
Nadine
N
D000328:Adult; D001265:Athletic Injuries / Q000517:prevention & control*; D001604:Berlin; D001642:Bicycling / Q000293:injuries*; D006259:Craniocerebral Trauma / Q000517:prevention & control*; D003430:Cross-Sectional Studies; D005260:Female; D006260:Head Protective Devices / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D012449:Safety; D014505:Urban Population / Q000706:statistics & numerical data*