F. P. Spézia, D. Siebert, A. Tenfen, C. M. M. de Cordova, M. D. Alberton, and A. Guedes, “Evaluation of antibacterial activity of medicinal plants in popular medicine: Alternanthera brasiliana (penicillin), Plantago major (broadleaf plantain), Arctostaphylos uva-ursi (bearberry), and Phyllanthus niruri (stone breaker)”, Rev. Pan-Amaz. Saúde, vol. 11, p. 11, Mar. 2020.