title: [Mandatory bicycle helmet use is a good thing].
authors.affiliation: Kuusankosken aluesairaala 45750 Kuusankoski. peter.luthje@kymshp.fi
authors.forename: Peter
authors.initials: P
authors.lastname: Lüthje
authors.forename: Ilona
authors.initials: I
authors.lastname: Nurmi
authors.forename: Raimo
authors.initials: R
authors.lastname: Niskanen
mesh_terms: D001642:Bicycling / Q000293:injuries*; D006259:Craniocerebral Trauma / Q000209:etiology / Q000517:prevention & control*; D005387:Finland; D006260:Head Protective Devices; D006801:Humans; D011640:Public Policy; D012307:Risk Factors