The natural methods for the regulation of fertility and culture of life: teaching experience evaluation. Medicina e Morale, [S. l.], v. 45, n. 4, p. 669–682, 1996. DOI: 10.4081/mem.1996.902. Disponível em: https://www.medicinaemorale.it/mem/article/view/902. Acesso em: 23 apr. 2026.