Perception And Preference Towards Siddha Medicines During Covid-19 In Tamil Nadu. Journal of Pharmaceutical Negative Results, [S. l.], p. 31–38, 2023. DOI: 10.47750/pnr.2023.14.02.005. Disponível em: https://www.pnrjournal.com/index.php/home/article/view/6389.. Acesso em: 19 jun. 2026.