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.
Odds ratio (OR) funnel plot of thymidine kinase 1 (TK1) subgroups according to different method. The methods used included chemiluminescence immunoassay (CLIA), radioenzymatic assay (REA), enzyme-linked immunosorbent assay (ELISA) and ELISA. There was no change in I2; however, it appears that the main heterogeneity may be attributed to CLIA and ELISA. CI, confidence interval.
