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. 2018 Jun 28;18:128. doi: 10.1186/s12872-018-0866-5

Fig. 2.

Fig. 2

Algorithm developed to create a cohort of patietns with heart failure with preserved ejection fraction. *Abbreviations: VINCI, VA Informatics and Computing Infrastructure; ICD-9, International Classification of Diseases-9; BNP, B-type natriuretic peptide; HFpEF, heart failure with preserved ejection fraction; EF, ejection fraction; ProBNP, aminoterminal pro-BNP; TIU, Text Integration Utilities