MEHTA, S. T.; YADAVA, P. A.; JANI, S. K.; SOLANKI, T. V.; PATEL, A. H.; MEHTA, S. D.; SHYARA, A. J.; RAWAL, D. R.; PATEL, D. R. Utility of first trimester ultrasound before 12 weeks of gestation at tertiary care centre in western India. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 11, n. 12, p. 3318–3323, 2022. DOI: 10.18203/2320-1770.ijrcog20223123. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/12273. Acesso em: 2 oct. 2025.