appendCohortTables      Append cohort data from multiple cohort
                        tables(s)
copyCohorts             Copy cohorts from one table to another
deleteCohort            Delete cohort
eraFyCohorts            Era-fy cohort(s)
getCohortIdsInCohortTable
                        Get cohort ids in table
intersectCohorts        Intersect cohort(s)
minusCohorts            Minus cohort(s)
reindexCohortsByDays    Reindex cohort(s) by relative days
removeOverlappingSubjects
                        Remove subjects in cohort that overlap with
                        another cohort
unionCohorts            Union cohort(s)
