PDLIM7 and nasopharyngeal carcinoma: Other sources for EBV LMP1 variants detection from NPC patients were peripheral blood in 8 studies (whole blood in 3, peripheral blood mononuclear cells in 1, peripheral blood lymphocytes in 1, peripheral blood leukocytes in 1, serum in 1, and plasma in 1 study), throat washing in 5, and xenografts in 1 study.