Comparative Study On Stress Disorder Between 1st And 2nd Wave Of Covid-19 Pandemic In Indian Population. Journal of Pharmaceutical Negative Results, [S. l.], p. 1435–1446, 2023. DOI: 10.47750/pnr.2023.14.03.193. Disponível em: https://pnrjournal.com/index.php/home/article/view/8386.. Acesso em: 7 jun. 2026.