TY - GEN AU - Kahn,C E AU - Sanders,G D AU - Lyons,E A AU - Kostelic,J K AU - MacEwan,D W AU - Gordon,W L TI - Computed tomography for nontraumatic headache: current utilization and cost-effectiveness SN - 0846-5371 PY - 1993///0707 KW - Adolescent KW - Adult KW - Aged KW - Aged, 80 and over KW - Brain KW - diagnostic imaging KW - Costs and Cost Analysis KW - Female KW - Headache KW - Humans KW - Male KW - Middle Aged KW - Retrospective Studies KW - Tomography, X-Ray Computed KW - economics N1 - Publication Type: Journal Article ER -