Sanjay Tandon, Aditya Sharma, and S. T.Nagdeote. 2022. “Comparison of Effects of Oral Methylprednisolone With Oral Prednisolone in Acute Exacerbations of COPD”. International Journal of Health and Clinical Research 5 (1):270-72. https://ijhcr.com/index.php/ijhcr/article/view/4000.