Enhancement of the nonspecific immune system by extracts of Asparagus africanus and Caesalpinia volkensii. Asian Journal of Pharmaceutical and Health Sciences, [S. l.], v. 2, n. 3, p. 380–383, 2012. DOI: 10.5530/sx86kw91. Disponível em: https://ajphs.com/index.php/ajphs/article/view/646. Acesso em: 31 jan. 2026.