SETHI, P. D.; GOYAL, N.; GARG, A. Ultrasonography: a diagnostic choice to localise intra uterine contraceptive devices. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 5, n. 9, p. 2964–2967, 2017. DOI: 10.18203/2320-1770.ijrcog20162699. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/1565. Acesso em: 4 oct. 2025.