title: PPV and the PSIs/HAC Measures.
authors.affiliation: The Armstrong Institute for Patient Safety and Quality, The Johns Hopkins University School of Medicine, Baltimore, MD.
authors.forename: Bradford D
authors.initials: BD
authors.lastname: Winters
authors.forename: Peter J
authors.initials: PJ
authors.lastname: Pronovost
mesh_terms: D061214:Patient Safety; D019984:Quality Indicators, Health Care