Golac-Guzina, Nataša, et al. “Comparative Study of the Efficacy of the Lysozyme, Benzydamine and Chlorhexidine Oral Spray in the Treatment of Acute Tonsillopharyngitis - Results of a Pilot Study”. Acta Medica Academica, vol. 48, no. 2, Oct. 2019, pp. 140-6, doi:10.5644/ama2006-124.252.