title: Editorial comment.
authors.affiliation: Department of Urology, University of Mainz, Germany.
authors.forename: Christian
authors.initials: C
authors.lastname: Thomas
authors.affiliation: Department of Urology, University of Mainz, Germany.
authors.forename: Joachim W
authors.initials: JW
authors.lastname: Thüroff
mesh_terms: D006801:Humans; D008297:Male; D060787:Neoplasm Grading; D011467:Prostate / Q000473:pathology*; D011471:Prostatic Neoplasms / Q000235:genetics* / Q000473:pathology*; D057832:Watchful Waiting