title: Reply to the letter of Zattoni et al.
authors.affiliation: Department of Radiological and Medical Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan. katokt@med.nagoya-u.ac.jp.
authors.forename: Katsuhiko
authors.initials: K
authors.lastname: Kato
mesh_terms: D002277:Carcinoma / Q000000981:diagnostic imaging*; D002794:Choline; D005260:Female; D006801:Humans; D008297:Male; D049268:Positron-Emission Tomography; D019275:Radiopharmaceuticals; D014571:Urologic Neoplasms / Q000000981:diagnostic imaging*
chemical_list: D019275:Radiopharmaceuticals; D002794:Choline