title: Author Reply.
authors.affiliation: Urologic Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland; Department of Urology and Radiology, University of Alabama at Birmingham, Birmingham, Alabama.
authors.forename: Arvin K
authors.initials: AK
authors.lastname: George
authors.affiliation: Urologic Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland.
authors.forename: Soroush
authors.initials: S
authors.lastname: Rais-Bahrami
authors.affiliation: Molecular Imaging Program, National Cancer Institute, National Institutes of Health, Bethesda, Maryland.
authors.forename: Michele
authors.initials: M
authors.lastname: Fascelli
authors.affiliation: Urologic Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland.
authors.forename: Baris
authors.initials: B
authors.lastname: Turkbeyc
mesh_terms: D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D017430:Prostate-Specific Antigen / Q000097:blood*; D011471:Prostatic Neoplasms / Q000097:blood* / Q000175:diagnosis*
chemical_list: D017430:Prostate-Specific Antigen