A laser system comprises a source, a laser medium, first and second mirrors, a Q-switch, and a control system. This verification step comprises the operations of calculating the modular exponentiation amodb, where is the Carmichael function, verifying that this modular exponentiation is equal to 1, storing the pair a, b when equality is verified, and reiterating the procedure with another pair when there is no verification. The stent thereby occludes the defective region from the inside of the vertebral disc and prevents the migration of nucleus pulposus therethrough, while also providing a scaffold for tissue growth. Each data sharing arrangement may be cross-referenced to one or more data sharing guidelines designed to assist the user to determine what privacy regulations apply and how to comply with same.