Value of serum indicators combined with transvaginal and transabdominal ultrasound in diagnosis of early ectopic pregnancy

Zhao Yan, Zhang Tianmei, Jiang Shuyan, Wang Yunqin, Song Xiuqin
International Medicine and Health Guidance News . 2024, (13): 2181 -2185 .  DOI: 10.3760/cma.j.issn.1007-1245.2024.13.013