Diagnostic performance of pretreatment 18F-fluorodeoxyglucose positron emission tomography with or without computed tomography in patients with primary central nervous system lymphoma: updated systematic review and diagnostic test accuracy meta-analyses - Gupta, T; Manjali, J J; Kannan, S; Purandare, N; Rangarajan, V (Clin Lymphoma Myeloma Leuk, 2021)