The studies.nct_id unique index should persist.  Eliminate it from the add/remove index processes.
The studies.nct_id unique index should persist.  Eliminate it from the add/remove index processes.
ctti-clinicaltrials/aact,tibbs001/aact-1,ctti-clinicaltrials/aact,tibbs001/aact-1,tibbs001/aact-1,ctti-clinicaltrials/aact