Journal Article

Matching identifiers in electronic health records: implications for duplicate records and patient safety.

McCoy AB, Wright A, Kahn MG, et al. BMJ quality & safety. 2013;22:219-24.

The presence of duplicate records (a single patient having multiple medical records within the same system) is a risk factor for preventable errors. This study at five academic medical centers found that duplicate records were common, with the incidence varying widely across centers.