Albrecht, Uwe, Rainer Stangeb, and Nadine Schermuly. 2020. “Efficacy and Safety of The Herbal Combination Containing Tropaeoli Majoris Herba and Armoraciae Rusticanae Radix in Patients Suffering from Uncomplicated, Acute Rhinosinusitis: A Randomized, Double-Blind, Placebo Controlled, Two-Arm, Parallel Group, Phase”. Journal of Current Medical Research and Opinion 3 (10):665-81. https://doi.org/10.15520/jcmro.v3i10.350.