18F-FDG-PET/CT in relapsed multiple myeloma: Are prognostic thresholds different from first-line therapy? - Romans Zukovs; Christina Antke; Eduards Mamlins; Lino Morris Sawicki; Annemarie Mohring; David Lopez y Niedenhoff; Amelie Boquoi; Mustafa Kondakci; Gerald Antoch; Hans-Wilhelm Müller; Roland Fenk; Rainer Haas (BMC Medical Imaging, 2022)