The journal and the authors apologise for errors in this article published in the March issue (vol 170, pp G1–G47).
Correction 1
In column 2 of Table 7 on page G16, the last disorder under Pulmonary disorders should be Respiratory failure associated with positive-pressure breathing and not as published.
Correction 2
On page G20, only SI units should be used in the equation for estimates of the serum sodium concentration corrected for the presence of hyperglycaemia and not as published. The correct equation is as follows:



