Buana, A. W., Kristyono, I. and Juniati, S. H. (2022) “Nasal pepsin A: Biomarker of laryngopharyngeal reflux in chronic rhinosinusitis”, International journal of health sciences, 6(S6), pp. 8599–8608. doi: 10.53730/ijhs.v6nS6.12321.