Letters
Non-invasive prenatal testing
The promise of non-invasive prenatal testing needs to be monitored scientifically
BMJ 2015; 350 doi: https://doi.org/10.1136/bmj.h2518 (Published 14 May 2015) Cite this as: BMJ 2015;350:h2518Article usage
Article metrics provide readers and authors with an indication of how often a specific article has been accessed month by month. It counts three formats - abstract/extract, full text and pdf. The page is updated each day.