Fig. 5.
RCTs “lost” by the classifier per 1,000 published, by year of publication, showing that the risk of “losing” a publication decreases over time.
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.