Corrections What is the optimal age for starting lipid lowering treatment? A mathematical model BMJ 2000; 321 doi: (Published 01 July 2000) Cite this as: BMJ 2000;321:44 Article Related content Metrics Responses Peer review An error crept into figure 4a in this article by Silvia Ulrich and colleagues (22 April, pp 1134-40). The x axis should read 5, 7, 9, 11 (not 25, 30, 35, 40).Footnotes ARTICLE