Study of The Role of Human Papilloma Virus and Laryngopharyngeal Reflux in Adult Vocal Fold Polyps. - Ghallab, Abdelhakim Fouad; Allam, Ahmed Farag; Abdelhay, Salwa Ahmed; Abdelwahab, Mohamed Gamal; Elsayed, Rasha Abdelhamid; Abdelalim, Abdelrahman Ahmed (Egyptian Journal of Hospital Medicine, 2020)