Cvitkovic, E Nasopharyngeal carcinoma. Biology, natural history, and therapeutic implications. [electronic resource] - Hematology/oncology clinics of North America Aug 1991 - 821-38 p. digital Publication Type: Journal Article; Review ISSN: 0889-8588 Subjects--Topical Terms: Carcinoma--etiologyCombined Modality TherapyHumansNasopharyngeal Neoplasms--etiology