A thermoplastic composition includes a poly, a poly resin, a polyolefin, and a selectively hydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene having up to about 20 percent residual pendant aliphatic unsaturation and at least about 30 percent residual in-chain aliphatic unsaturation. In two systems that constitute a fault tolerant system, a router assigns, to an access packet transmitted from a CPU to an IO device, tag information including ID codes of access source and destination and information indicating whether the access packet is synchronous access. After the physician selects a medical facility and the system verifies the physician’s user I. One or more secondary queries are generated, each secondary query including the current query and one of the potential refinements, each secondary query matching a query-refinement pair in a trigger map that includes a plurality of query-refinement pairs.