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.
HSROC for the ELISA-based D-dimer tests. (a) Hierarchical summary receiver-operator curve (HSROC) of the studies plotted in Fig. 1a. (b) Calculated negative predictive value for the ELISA-based D-dimer test if the sensitivity and specificity are fixed at 80 % and 97 %, respectively, and prevalence of venous thromboembolism varies from 5 to 50 %.
