Hubungan subtipe imunofenotipik berdasarkan ekspresi cd56 dan cd16 dengan ekspresi cd30 dan ki-67 pada limfoma sel nk/t ekstranodal tipe nasal. = The Correlation between immunophenotypic subtypes based on cd56 and cd16 expression with cd30 and ki 67 expression in extranodal nk t cell lymphoma nasal type