A system and method for notifying salespersons of customer communications including a target item is provided. In another embodiment of the invention, a method of evaluating a test compound’s effect of diabetic nephropathy is disclosed. The developed images formed on the photosensitive drum are transferred onto an intermediate transfer belt. The upper block includes a fail-safe system that prevents failure of the upper block in overload conditions. The method includes forming a tunnel in a bone and forming a counterbore substantially perpendicular with the tunnel.