TY - JOUR PY - 1993// TI - The cyclist and his helmet JO - Harefuah A1 - Ohry, A. A1 - Azaria, M. SP - 444 EP - 444 VL - 124 IS - 7 N2 - Abstract unavailable. LA - SN - 0017-7768 UR - http://dx.doi.org/ ID - ref1 ER -