GRAD, Roni. Respiration, Ensoulment, and Personhood of the Human Zygote and Preimplantation Embryo. Verba Vitae, Brookings, SD, v. 3, n. 2, p. 119–145, 2026. DOI: 10.66100/vvj.v3i2.129. Disponível em: https://verba-vitae.org/index.php/vvj/article/view/129. Acesso em: 10 aug. 2026.