Steven D Watts

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OBJECTIVES Assess the effects on spermatogenesis of daily tadalafil 20mg over three spermatogenesis cycles in men >or= 45 yr. METHODS In this double-blind, placebo-controlled, noninferiority study,(More)
PURPOSE Tadalafil has regulatory approval for the treatment of men with signs/symptoms of benign prostatic hyperplasia with and without erectile dysfunction. We assessed whether the effects of(More)