Nagaraju K, Karthik N, Porchelvan S, Rishi Jain, and Snehal Muchhala. “An Open Labelled Prospective Clinical Study to Evaluate the Efficacy, Safety and Cost Analysis of Pidotimod As Add-on Drug for Maintenance Therapy in Paediatric Recurrent Acute Respiratory Tract Infections.”. International Journal of Research in Pharmaceutical Sciences 11, no. 2 (April 27, 2020): 2183-2188. Accessed October 23, 2020.