in most of the malignant tumours no papilloma-viral dna was found , with the exception of 3 tongue-base carcinomas , and in a metastasis from one of the tumours , which contained hpv 16 ( 3 biopsies ) and hpv 2 related sequences ( 1 biopsy ) .
C0999806
hpv 16
C0021344
hpv