A truck box frame includes first and second laterally extending frame members and a frame side rail assembly. The method employs immunoassays which detect autoantibodies in a serum sample which react with Thomsen-Friedenreich antigen. Preferably, the stab knife is formed to be sufficiently acuate and flat so as to allow a surfacevolume ratio for the stab knife to be at least twice that of a cone of similar size and extent. A method for creating, linking and displaying a three-dimensional spatial object is also disclosed, as well as a method of generating a visual flight between several geographical points, showing the KML structures during the flight. The present invention utilizes primarily passive, linear components to combine the transmit signals of PCS Providers which reside in non-adjacent frequency bands over a multi-sector antenna and to distribute from a multi-sector antenna the receive signals in all frequency bands of the PCS Providers.