six oral squamous cell tumours classified as focal epithelial hyperplasia ( feh ) , condyloma acuminatum ( ca ) and squamous cell papilloma ( sqp ) were subjected to indirect immunoperoxidase staining with anti-human papillomavirus ( anti-hpv ) antiserum to demonstrate the possible presence of hpv antigens in these lesions .
C0206720
squamous cell tumours
C0030354
hpv