Amniocentesis

These Prenatal Tests Are Usually Wrong When Warning of Rare Disorders

A big market for rare conditions Between 2011 and 2013, a small Silicon Valley-based biotech company, Sequenom, tripled in size. The key to its success: MaterniT21, a new prenatal screening test that did remarkably well at detecting Down syndrome. Older screening tests took months and required multiple blood tests. This new one generated fewer false […]