Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Pregnancy failure meta-analysis (HM with covariate): Mean summary ROC curves for 13 prospective and 7 retrospective studies reporting on distinction between pregnancy failure and viable intra-uterine pregnancy, with envelope bands over FPR region.
