Development And Evaluation Of Novel Aqueous Neem Leaf Extract: A Potent Contraceptive Agent. Journal of Pharmaceutical Negative Results, [S. l.], v. 13, n. 2, p. 601–608, 2022. DOI: 10.47750/pnr.2022.13.02.89. Disponível em: https://pnrjournal.com/index.php/home/article/view/9220.. Acesso em: 10 jun. 2026.