Here's a correction referring back to 2002. A caption was wrong in this article by Corey Slovis and Richard Jenkins (BMJ 2002;324:1320-3, doi: 10.1136/bmj.324.7349.1320). In the section “Other non-cardiac conditions” the caption to the first figure should have read: “Short QT interval in patient with hypercalcaemia [not hypocalcaemia] (calcium concentration 4 mmol/l).”