Immediate and long term effects of weight reduction in obese people with asthma: randomised controlled study

In this paper by Brita Stenius-Aarniala et al (25 March, pp 827-32) we inadvertently failed to remove a reference to error bars from the caption to figure 1. The graphs in the figure are correct; there should be no error bars. Moreover, Pertti Mustajoki, one of the authors, is a consultant in endocrinology (not pulmonary medicine).