SHETH, V. S.; NAKUM, K. D.; PATEL, M. D.; LUNAGARIYA, M. R. Maternal serum βhCG level and uterine artery doppler studies as predictors of pregnancy induced hypertension and intra uterine growth restriction: a prospective study. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 8, n. 8, p. 3357–3361, 2019. DOI: 10.18203/2320-1770.ijrcog20193565. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/6939. Acesso em: 4 dec. 2025.