TY - JOUR PY - 1984// TI - Helmets, head injuries and motorcycles JO - Arizona medicine A1 - Harrington, T. SP - 802 EP - 804 VL - 41 IS - 12 N2 - Abstract unavailable. LA - SN - 0004-1556 UR - http://dx.doi.org/ ID - ref1 ER -