“…The studies have detected EBV by PCR-based techniques (n = 16) [3][4][5]12,13,15,17,18,21,23,25,28,[31][32][33][34], in situ hybridization (ISH) (n = 14) [2,10,12,14,16,19,20,22,[26][27][28]31,32,35], or immunological methods (n = 10) [5,10,12,14,16,24,[28][29][30]35]. In seven studies, two techniques were used for viral detection, with five studies combining immunological assays and hybridization [4,10,14,16,35]: a study using immunological and PCR-based techniques [5] and another study applying ISH and PCR-based techniques [32]. Three different techniques (ISH, immunological, and PCR-based methods) were employed in two studies…”