The article was reprinted from the publication "Internistas" in 2017. No. 9. “Ambroxol - to Relieve Cough”. Slauga. Mokslas ir praktika, no. 3 (255) (September 23, 2020): 14–15. Accessed October 26, 2025. https://test.zurnalai.vu.lt/slauga/article/view/19793.