Severity and mortality associated with COVID-19 among children hospitalised in tertiary care centres in India: a cohort studyResearch in context oleh Vidushi Gupta, Amitabh Singh, Sheetal Ganju, Raghvendra Singh, Ramachandran Thiruvengadam, Uma Chandra Mouli Natchu, Nitesh Gupta, Deepali Kaushik, Surbhi Chanana, Dharmendra Sharma, Mudita Gosain, Suman PN. Rao, Narendra Pandey, Arvind Gupta, Sandeep Singh, Urmila Jhamb, Lalitha Annayappa Venkatesh, Chitra Dinakar, Anil Kumar Pandey, Rani Gera, Harish Chellani, Nitya Wadhwa, Shinjini Bhatnagar