TY - JOUR T1 - Internet column JF - Injury Prevention JO - Inj Prev SP - 72 LP - 72 DO - 10.1136/ip.2.1.72 VL - 2 IS - 1 A2 - , Y1 - 1996/03/01 UR - http://injuryprevention.bmj.com/content/2/1/72.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -