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. 2021 Aug 26;13(9):1692. doi: 10.3390/v13091692

Figure 1.

Figure 1

Prisma flow diagram. Abbreviation: Oropharyngeal squamous cell carcinoma (OPSCC). * Studies focused on the epidemiological aspects of OPSCC (e.g., survival and incidence in patients with HPV+ and HPV- OPSCC) (n = 385), treatment of HPV+ OPSCC (n = 230), biomarkers, molecular characterization and gene expression in HPV+ tumours (n = 218), imaging of OPSCC tumours (n = 53), quality of life in OPSCC patients (n = 26), HPV vaccines (n = 14), validation of assays for HPV detection (n = 11), costs of HPV detection (n = 9), concerning oral health (n = 4), others (n = 25), e.g., HPV clearance profile, HPV load in relation to tumour size and HPV genotypes.