MICHALCZYK, Michał; TORBÉ, Dorota; TORBÉ, Andrzej. A brief historical outline of the development of labor analgesia. Journal of Education, Health and Sport, [S. l.], v. 8, n. 9, p. 827–832, 2018. Disponível em: https://apcz.umk.pl/JEHS/article/view/5970. Acesso em: 21 feb. 2025.