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Effect of levitra on sustenance of erection (EROS): an open-label, prospective, multicenter, single-arm study to investigate erection duration measured by stopwatch with flexible dose vardenafil administered for 8 weeks in subjects with erectile dysfunction.
Shin YS, Lee SW, Park K, Chung WS, Kim SW, Hyun JS, Moon DG, Yang SK, Ryu JK, Yang DY, Moon KH, Min KS, Park JK. Shin YS, et al. Int J Impot Res. 2015 May-Jun;27(3):95-102. doi: 10.1038/ijir.2014.39. Epub 2014 Dec 4. Int J Impot Res. 2015. PMID: 25471318 Clinical Trial.
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