Rodeck C H, Morsman J M, Gosden C M, Gosden J R
Br J Obstet Gynaecol. 1983 Dec;90(12):1113-8. doi: 10.1111/j.1471-0528.1983.tb06456.x.
Six different methods of chorion biopsy were compared and assessed in 45 patients in the first trimester of pregnancy. A total of 103 biopsies was obtained; it was found that the most reliable, accurate and safe method combined direct transcervical endoscopy with real-time ultrasound scanning, using an aspiration needle.
对45例孕早期患者的绒毛活检采用6种不同方法进行比较和评估。共获取了103次活检样本；结果发现，最可靠、准确且安全的方法是将直接经宫颈内窥镜检查与实时超声扫描相结合，使用抽吸针进行操作。
