in order to explore whether undifferentiated nasopharyngeal carcinoma ( npc ) shows a regular association with epstein-barr virus ( ebv ) , regardless of the geographical and ethnic origin of the patient , a correlated histopathological and nucleic acid hybridization study was performed on biopsies from caucasian patients with nasopharyngeal carcinomas and from various controls .
C0027442
nasopharyngeal
C2931822
nasopharyngeal carcinomas