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Morgan TM, Tang D, Stratton KL, Barocas DA, Anderson CB, Gregg JR, Chang SS, Cookson MS, Herrell SD, Smith JA Jr, Clark PE.Morgan TM, et al. Among authors: herrell sd.Eur Urol. 2011 Jun;59(6):923-8. doi: 10.1016/j.eururo.2011.01.034. Epub 2011 Jan 28.Eur Urol. 2011.PMID: 21295907Free PMC article.