Elevated capillary blood glucose values prior to [18F]FDG-PET are common in patients with gastrointestinal tumors: a real-world clinical analysis - Antonio Giulio Gennari; Joan Walter; Bojan Bojanic; Nadia Fehr; Alexia Rossi; Thomas Sartoretti; Moritz Schwyzer; Philipp Saurer; Katharina Binz; Matthias Ernst; Martin Huellner; Michael Messerli (Journal of Cancer Research and Clinical Oncology, 2026)