From: 4, Data Elements for Registries
Registries for Evaluating Patient Outcomes: A User's Guide [Internet]. 3rd edition.
Gliklich RE, Dreyer NA, Leavy MB, editors.
Rockville (MD): Agency for Healthcare Research and Quality (US); 2014 Apr.
NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.