A routing system is provided for intelligent routing of instant messages between clients connected to a data network and customer service representatives connected to the network. The other of the push and pull operations is performed with an output current of the current mirror circuit. Projections of stent strut dimensions can be used to compensate for stent imaging artifacts results from imaging probe orientation in the lumen. By performing pixel shifting in a direction perpendicular to the direction in which a parallax is generated, it always is possible to obtain a high-resolution image even when the subject distance varies. Also integrated on the common substrate are, a serializer circuit including a dynamic arbiter under the control of the microcontroller core and a set of extended special function registers through which data is passed to allow the microcontroller to control the CMOS imager and the serializer circuit. A dibenzoc,gcarbazole compound in which an aryl group having 14 to 30 carbon atoms and including at least anthracene is bonded to nitrogen of a dibenzoc,gcarbazole derivative is synthesized.