SHARMA, S.; BUNDAS, S.; MALAKAR, P. C.; SHARMA, A.; GUPTA, A. A comparative study of blood transfusion services before and during COVID-19 pandemic and the challenges faced: retrospective study done at a tertiary care hospital in North Western India. International Journal Of Community Medicine And Public Health, [S. l.], v. 8, n. 4, p. 1788–1791, 2021. DOI: 10.18203/2394-6040.ijcmph20211235. Disponível em: https://www.ijcmph.com/index.php/ijcmph/article/view/7829. Acesso em: 15 feb. 2026.