Contains digital files from the following accessions: Accession A2019.005. Includes photographs, mailing lists, mailing labels, newsletters, and manuscript pages pertaining to Greenfield's published texts, particularly his work on the Chief Medical Residents for the Duke University Department of Medicine. File types include images (JPG, TIFF, and Photoshop images) and Microsoft Excel and Word. The digital files date from 2008 to 2013, with original material dating from 2006 to 2013.