title: WITHDRAWN: Reply.
abstract: The Publisher regrets that this article is an accidental duplication of an article that has already been published, http://dx.doi.org/10.1016/j.urology.2015.08.053. The duplicate article has therefore been withdrawn. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
authors.affiliation: Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
authors.forename: Bianjiang
authors.initials: B
authors.lastname: Liu
authors.affiliation: Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
authors.forename: Zengjun
authors.initials: Z
authors.lastname: Wang