GRIZHYMALSKYI, Ye V; HARHA, A I; SULIMENKO, Ye V. A modern approach to pain relief in labour. Pain medicine, [S. l.], v. 5, n. 4, p. 36–42, 2021. DOI: 10.31636/pmjua.v5i4.6. Disponível em: https://painmedicine.org.ua/index.php/pnmdcn/article/view/241. Acesso em: 21 mar. 2026.