PENGARUH POLYPHENOLS TEH HIJAU TERHADAPKAPASITAS PRODUKSI IFN-γOLEH SEL MONONUKLEAR DARAH TEPI AKIBATRADIOTERAPI PADA PENDERITA KARSINOMA NASOFARINGTHE EFFECT OF GREEN TEA POLYPHENOLSTO THE IFN-γ PRODUCTION CAPACITYBY PERIPHERAL BLOOD MONONUCLEAR CELLS AS A RESULT OFA RADIOTHERAPY TO THE NASOPHARYNGEAL CARCINOMA PATIENTS