A multicenter, randomized, open-labeled, parallel group trial of sildenafil in alcohol-associated erectile dysfunction: the impact on psychosocial outcomes.

Int J Environ Res Public Health · 2009 · PMC2760426 · PMID 19826560

Europe PMC DOI

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highly significantno p-value reported

However, such placebo effect seems unlikely, given the highly significant improvements in the multiple psychosocial and clinical variables achieved for a relatively short trial period.

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