All Core Lab staff are oriented to the lab using a standardized three to six month training process. The training includes a review of the computer systems used for analysis as well as electronic case report forms and database formulation. To complete training, all technicians must successfully perform measurements and calculations on several cases, which are reviewed by another technician and the Director of the Cardiovascular Core Lab and must meet pre-specified inter-observer variability standards. Prior to initiation of a study, all personal are trained on that study including review of the protocol and Core Lab analysis required for that protocol. All aspects of training are documented for each employee.