Serum screening for Down's syndrome. Vacutainer system can lead to inaccurate results.

BMJ 1993; 307 doi: https://doi.org/10.1136/bmj.307.6908.868 (Published 02 October 1993) Cite this as: BMJ 1993;307:868

This is a PDF-only article. The first page of the PDF of this article appears below.

PDF extract preview

Log in

Log in through your institution


* For online subscription