Fig. 1

The study route, R: reactive, NR: non-reactive, Wantai: Diagnostic Kit for Hepatitis B Virus Surface Antigen (ELISA), Sorin: Murex HBsAg version3, NAT-Roche: Cobas TaqScreen MPX Test, version 2.0, NAT-Grifols: Procleix Ultrio Plus Assay, CLIA: ARCHITECT HBsAg Reagent Kit, ECLIA: Elecsys HBsAg II