Use of RxNorm and NDF-RT to Normalize and Characterize Participant-reported Medications in a Research Repository: Pbstacles and Achievements. - Jessica D. Tenenbaum; Colette Blach; Guilherme Del Fiol; Chandel Dundee; Julie Frund; Michelle Smerek; Anita Walden; Rachel L. Richesson (AMIA, 2013)