The Journal of Urology · 2006 · 85 citations · 17 references
In this study of men with ED, sildenafil produced substantial improvements in self-esteem, confidence and relationship satisfaction as measured by SEAR scores, which showed moderate to high positive correlations with IIEF scores.
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Statistical Power Analysis for the Behavioral Sciences
Keith E. Muller · Technometrics · 1989 · 16.5K citations
Behavioral Sciences, Statistical Power Analysis, Engineering +4