A circumferential vertebral column fixation systems includes an elongated engagement bar including at least two spaced apart fastener holes configured to be positioned within a vertebral body or other spinal bony segment such that fasteners inserted into the vertebral body or spinal bony segment are provided with an anchor point to help prevent fastener pull out. The present invention also relates to a method of treatment of FSD, in particular FSAD andor FOD, as well as to assays to screen for compounds useful in the treatment of FSD, in particular FSAD andor FOD. Thereafter, the other party is called and offered a connection attempt to the first party. The system is characterized in that server side authentication using the server authentication date and user side authentication using authentication data of the user are performed alternatively. For example, a mechanism in which the CPUsAPs can only access a mailbox location in the SEP is described. , wagering chips, on the same displays, while also allowing and tracking real playing cards.