How CH, Fock KM 
Singapore Med J 2014; 55(3): 126-127; http://dx.doi.org/10.11622/smedj.2014027

The doi in the printed journal is incorrect. It should be 10.11622/smedj.2014027, and not 10.11622/smedj.2013134. The online version of the article reflects the correct doi.

Singapore Med J 2014; 55(4): 234; http://dx.doi.org/10.11622/smedj.2014058