Development of an improved technique for first‐trimester microsampling of chorion
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...
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Veröffentlicht in: | BJOG : an international journal of obstetrics and gynaecology 1983-12, Vol.90 (12), p.1113-1118 |
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