Dahanayake JM , Perera PK,  Priyadarshani Galappatty. Development of an Ayurvedic pharmaceutical preparation for allergic rhinitis (Peenasa in Ayurveda) and evaluation of its safety and  efficacy: Study protocol.Third International Conference on Natural Products Genomics and Drug Discovery “Basic and Translational Research on Cancer and Inflammation” 10 – 11 July 2017, Conference at Galadari Hotel, Colombo, Sri Lanka