The services provided by TCI-BCI-SRF statisticians include study design (including development of designs for clinical trials, animal studies, and epidemiological studies); computation of sample size and power calculations; writing for statistical analysis plans; conducting statistical analysis (including development of tables and graphics for presentation); interpretation of the findings in language understandable by the investigators; and assistance with manuscript preparation and revision.  All of these activities are done interactively with the primary investigators, with a thorough understanding of science required to provide appropriate statistical input.