The study of the clinical features and pregnancy outcome of placental chorioangioma diagnosed by ultrasound
XIANG Wei, SUN Cong-xin, CHEN Gui-hong, GUAN Jing, WANG Li-xian
Journal of Hebei Medical University . 2023, (6): 702 -706 .  DOI: 10.3969/j.issn.1007-3205.2023.06.016