The authors regret providing incorrect information in Fig. 2 caption that should be as follows: Fig. 2. Distribution of troponin concentration in the reference population. (A) Beckman Coulter DxI, (B) Siemens Dimension, (C) Siemens Dimension VISTA, (D) Siemens Centaur, (E) Abbott Architect, and (F) Roche C6000. The authors would like to apologise for any inconvenience caused.