Presented at the 16th International Conference on Prenatal Diagnosis and Therapy, Miami, Florida, June 3–6, 2012.
Conflicts of interest: Alessandro Ghidini declares he has no conflict of interest. Howard Cuckle is a Director of Genome Ltd, a provider of pre-eclampsia screening services, and a consultant to PekinElmer Inc, a manufacturer of reagents used in testing pre-eclampsia markers, PAPP-A and PlGF. Peter von Dadelszen has been a paid consultant to Alere International. That relationship has had no impact on his presentation.