title: Utilization of clinical laboratory services.
mesh_terms: D001900:Boston; D019411:Clinical Laboratory Techniques / Q000706:statistics & numerical data*; D003363:Cost Control; D003625:Data Collection; D006300:Health Services Misuse; D006801:Humans; D007755:Laboratories, Hospital / Q000706:statistics & numerical data*; D010818:Practice Patterns, Physicians'