New devices and methods for diagnosis and compositions and methods for treatment of cancers use combinations of antimicrobial agents and agents that can reverse dormancy and hibernation pathways. The ferroelectric elements of the nonvolatile storage unit are surrounded by a dummy element smaller in width than the ferroelectric elements. Centralized management is performed for user identity information and user identity verification, development and maintenance cost is reduced, security of the user account is increased, and operations of the user are facilitated. This distributed processing increases the retrieval speed of standby paths and minimizes the delay to full restoration of service, avoiding the concurrent processing bottleneck that occurs in prior art designs when multiple active paths simultaneously fail and a central processor must sequentially redirect each unit controller. One of the needles is provided with a suture control mechanism for moving a suture through the needle and the other needle is provided with a snare control mechanism for moving a snare through the needle.