The Effect of Barley Aqueous Extract on Clinical Signs of COVID-19: An Open-Labeled Randomized Clinical Trial - Adel-Mehraban, Mohammad Sadegh; Babaei, Hanieh; Tahermohammadi, Hanieh; Shakeri, Nezhat; Hajihoseini, Mohsen; Kaveh, Shahpar; Tansaz, Mojgan; Izadikhah, Akram (Traditional and Integrative Medicine, 2025)