title: Combined FDG-PET/CT for the detection of unknown primary tumors: systematic review and meta-analysis.
mesh_terms: D005189:False Positive Reactions; D019788:Fluorodeoxyglucose F18 / Q000494:pharmacology*; D006801:Humans; D008495:Medical Oncology / Q000379:methods; D009362:Neoplasm Metastasis; D009382:Neoplasms, Unknown Primary / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000473:pathology; D049268:Positron-Emission Tomography / Q000379:methods*; D011871:Radiology / Q000379:methods; D019275:Radiopharmaceuticals; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000379:methods*
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18