TY - JOUR PY - 1971// TI - National driver's license JO - New England journal of medicine A1 - Whitehill, L. A. SP - 161 EP - 161 VL - 284 IS - 3 N2 - Abstract unavailable. LA - SN - 0028-4793 UR - http://dx.doi.org/ ID - ref1 ER -