TY - RPRT TI - Estimating seat belt effectiveness using matched-pair cohort methods. AU - Peter Cummings AU - James D Wells AU - Frederick P Rivara PY - 2003 DO - 10.1016/s0001-4575(01)00087-2 UR - https://pubmed.ncbi.nlm.nih.gov/12479905/ ID - 12479905 ER -