title: PET reflections.
authors.forename: P J
authors.initials: PJ
authors.lastname: Ell
mesh_terms: D001932:Brain Neoplasms / Q000000981:diagnostic imaging; D004827:Epilepsy / Q000000981:diagnostic imaging; D006331:Heart Diseases / Q000000981:diagnostic imaging; D006801:Humans; D014055:Tomography, Emission-Computed / Q000639:trends*; D015899:Tomography, Emission-Computed, Single-Photon / Q000639:trends*