TY - JOUR PY - 1984// TI - Detachment of crash helmets during motorcycle accidents JO - British medical journal (clinical research edition) A1 - Richards, P. G. SP - 758 EP - 758 VL - 288 IS - 6419 N2 - Abstract unavailable. LA - SN - 0267-0623 UR - http://dx.doi.org/ ID - ref1 ER -