Association between postnatal catch-up growth and obesity in childhood: prospective cohort study

Owing to a technical problem the references were not included in the main text of this paper by Ken K L Ong and colleagues (8 April, pp 967-71). We apologise for this and have reinstated the numbers in our website version; readers may access the corrected article at www.bmj.com/cgi/content/full/320/7240/967.