Usama Naveed Cheema, Shahi Zeb, Laiba Irfan, Mirza Zeeshan Sikandar, Syed Arslan Ashraf, Khalid Munir 2022. Impact of Topical v/s Systemic Steroids on Regaining Olfaction in Post Covid-19 Patients; A Randomized Controlled Trail. Pakistan Journal of Medical & Health Sciences. 16, 11 (Dec. 2022), 185. DOI:https://doi.org/10.53350/pjmhs20221611185.