Methods and apparatus are provided for a hold-down assembly for attaching an armor panel to the floor of a vehicle utilizing an existing integrated tie-down feature. A server receives a paging request from a customer. A plurality of display items is provided and the display items are allocated according to a determined order which may depend on one or more of a user preference, the contents of the viewable area, the activity of the user, and environmental parameters. The Th1-like response can be detected by measuring IFN-gamma produced by the cell sample.