CDKN2A and neoplasm: Attenuated expression (H-score < 200) of NOVA1 in tumor cells was frequent in non-oropharynx SCC such as SCC arising in oral cavity, hypopharynx, larynx, and p16 (HPV)-negative SCC (p < 0.001, respectively; Fig. 4A,B), and it was most frequently observed in p16-negative non-oropharynx SCC, when comparing oropharynx SCC and/or HPV-positive cases (p < 0.001; Fig. 4C).