机译:利多君对孕妇早产威胁治疗后心脏结构和功能的影响:基于超声心动图评估的报告
Department of Ultrasound the First Affiliated Hospital of Hainan Medical University Haikou Hainan 570102 China;
Department of Obstetrics and Gynecology the First Affiliated Hospital of Hainan Medical University Haikou Hainan 570102 China;
Pregnancy; Preterm birth; Ritodrine; Echocardiography;