TY - JOUR PY - 2005// TI - Commentary: next steps for graduated licensing JO - Traffic injury prevention A1 - Williams, Allan F. SP - 199 EP - 201 VL - 6 IS - 3 N2 - Abstract unavailable. LA - SN - 1538-9588 UR - http://dx.doi.org/10.1080/15389580590969076 ID - ref1 ER -