Link to the original article: http://iospress.metapress.com/content/c6226856gj862408/ In the Abstract, the sentence "Three groups of subjects: BPH (57 patients), prostate cancer (53 patients) and controls (46 subjects) were recruited" should read:"Three groups of subjects: BPH (53 patients), prostate cancer (57 patients) and controls (46 subjects) were recruited."We are thankful to Professor Peichao Tian for pointing out this correction. Prof. Tian can be reached at the Department of Pediatrics, the first
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