Short-term influence of Immufen™ on mild allergic rhinitis: a randomized, double-blind, placebo-controlled study - K, Mamatha; Aryan, Manu Kanjoormana; Prabhakaran, Prathibha; Mulakal, Johannah Natinga; Das S, Syam; IM, Krishnakumar; Parameswara Panicker, Sreejith (Frontiers in Allergy, 2024)