Robert Sonora

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The use of microbiologic investigations in routine clinical practice, their value in guiding antibiotic prescription, and their influence on outcome were prospectively studied in 113 consecutive adults who developed ventilator-associated pneumonia (VAP). Blood cultures were performed in 78.7% of cases, protected specimen brushing in 95.5%, and(More)
In order to assess potential risk factors for pneumonia within the first 8 d of ventilation, we studied 83 consecutive intubated patients undergoing continuous aspiration of subglottic secretions (CASS). Multivariate analysis showed the protective effect of antibiotic use (relative risk [RR] = 0.10; 95% confidence interval [CI] = 0.01 to 0.71), whereas(More)
We study the dynamics of price indices for major U.S. cities using panel econometric methods. We find that relative price levels among cities mean revert, but at a surprisingly slow rate. In a panel of 19 cities from 1918 to 1995, we estimate the half-life of convergence to be approximately 9 years. These estimates provide an upper bound on speed of(More)
We study the dynamics of price indices for major U.S. cities using panel econometric methods and find that relative price levels among cities mean revert at an exceptionally slow rate. In a panel of 19 cities from 1918 to 1995, we estimate the half-life of convergence to be approximately nine years. The surprisingly slow rate of convergence can be explained(More)
OBJECTIVE To assess the impact of severity of illness at different times, using the Mortality Probability Models (MPM II), and the impact of etiologic agent on survival in patients with nosocomial pneumonia. DESIGN Retrospective, observational study. SETTING Fourteen-bed medical-surgical intensive care unit (ICU) in a teaching hospital. PATIENTS(More)
We study the dynamics of price indices for major U.S. cities using panel econometric methods. We ̄nd that relative price levels among cities mean revert, but at a surprisingly slow rate. In a panel of 19 cities from 1918 to 1995, we estimate the half-life of convergence to be approximately 9 years. These estimates provide an upper bound on speed of(More)
The purpose of this research is to investigate how labor market institutions and regulations and tax policies effect income inequality across the European member countries. The sample contains the fifteen core European Union (EU) members as well as thirteen Central and Eastern European (CEE) economies which have recently joined. Using fixed and random(More)
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