Effectiveness of Echinacea purpurea extract on immune deficiency induced by azathioprine in male albino rats. Bioscience Journal [online], 2021. [online], vol. 37, pp. e37029. [Accessed14 December 2025]. DOI 10.14393/BJ-v37n0a2021-51270. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/51270.