TY - JOUR T1 - Bicycle-related head injuries plummet JF - Canadian Medical Association Journal JO - CMAJ SP - 1313 LP - 1313 VL - 168 IS - 10 AU - Natalie Dunleavy Y1 - 2003/05/13 UR - http://www.cmaj.ca/content/168/10/1313.1.abstract ER -