Weckmann G, Hauptmann-Voß A, Baumeister SE, Klötzer C, Chenot JF (2017). "Efficacy of AMC/DCBA lozenges for sore throat: A systematic review and meta-analysis". Int J Clin Pract. 71 (10): 1742–1241. doi:10.1111/ijcp.13002. PMID28869700.
Weckmann G, Hauptmann-Voß A, Baumeister SE, Klötzer C, Chenot JF (2017). "Efficacy of AMC/DCBA lozenges for sore throat: A systematic review and meta-analysis". Int J Clin Pract. 71 (10): 1742–1241. doi:10.1111/ijcp.13002. PMID28869700.