Nath, Ravindra, Neeraj Kumar Gupta, Amandeep Jaswal, Sparsh Gupta, Navjot Kaur, Santvana Kohli, Anirudh saxena, Pranav Ish, Rohit Kumar, Poornima Tiwari, Mukesh Kumar, Jugal Kishore, Geeta Yadav, Fellisha Marwein, and Nitesh Gupta. “Mortality Among Adult Hospitalized Patients During the First Wave and Second Wave of COVID-19 Pandemic at a Tertiary Care Center in India”. Monaldi Archives for Chest Disease 92, no. 2 (October 11, 2021). Accessed April 26, 2024. https://www.monaldi-archives.org/macd/article/view/2034.