QAHHOROV, S. I. ugli. Covid-19 changes in pregnant women with sickness and ultrasound examination in them. Science and Education, [S. l.], v. 2, n. 12, p. 109-112, 2021. Disponível em: https://openscience.uz/index.php/sciedu/article/view/2139. Acesso em: 19 may. 2022.