IgA antibodies against the Epstein-Barr nuclear antigen1 as a valuable biomarker for the diagnosis of nasopharyngeal carcinoma in Tunisian patients. - Ayadi W; Karray-Hakim H; Feki L; Khabir A; Boudawara T; Ghorbel A; Daoud J; Frikha M; Hammami A (Journal of medical virology, 2009)