The authors regret errors in Figure 3 (page 6).
The correct labels are
[red line] Traditional risk factors
[blue line] Traditional risk factors + TMAO, choline and its precursors
The caption of the figure erroneously identified the red and blue lines. The correct caption is
Fig. 3. Receiver operating characteristic curves of traditional risk factors (red) plus TMAO, choline and its related metabolites (blue) for NAFLD. NAFLD, non-alcoholic fatty liver disease; TMAO, trimethylamine N-oxide.