title: IAEA Technical Report Series.
authors.affiliation: Barts and the London School of Medicine, London, UK. s.j.mather@qmul.ac.uk.
authors.forename: Stephen J
authors.initials: SJ
authors.lastname: Mather
authors.affiliation: Medicina Nucleare-Istituto di Scienze Radiologiche, Seconda Università di Napoli, Naples, Italy.
authors.forename: Luigi
authors.initials: L
authors.lastname: Mansi