Much of the outward impact of the Biostatistics and Computational Biology Branch's (BCBB) methods development is through external use of our software and databases, which require maintenance and updates. . Such efforts can be intractable for tools written by trainees with brief tenures. Developing, maintaining, and updating software is a labor-intensive, but readily delegated task. This contract will support consulting in the development and implementation of biostatistics and computational biology tools for BCBB investigators.