Analysis of CpG promotor methylation status of the AKR1C3 gene in HPV16 positive and negative oropharyngeal squamous cell carcinoma - Pulido Guevara, B; Würdemann, N; Groß, E; Siefer, OG; Wagner, S; Reder, HSF; Gattenlöhner, S; Huebbers, CU; Klußmann, JP (Laryngo-Rhino-Otologie, 2019)