The writing committee on behalf of the ASTEC study group. Efficacy of systematic pelvic lymphadenectomy in endometrial cancer (MRC ASTEC trial): a randomised study. Lancet 2009; 373: 125–36—In this Article (Jan 10), the reference for the last sentence in the second paragraph of the Statistical Analysis section in the Methods should have been “Early Breast Cancer Trialists' Collaborative Group. Effects of radiotherapy and surgery in early breast cancer: an overview of the randomized trials. N Engl J Med 1995; 333: 1444–55”. The reference for the last sentence of the third paragraph in this section should have been “Royston P, Parmar MK. Flexible parametric proportional-hazards and proportional-odds models for censored survival data, with application to prognostic modelling and estimation of treatment effects. Stat Med 2002; 21: 2175–97”. All subsequent references in the Article are correctly cited.
. 2009 May 23;373(9677):1764. doi: 10.1016/S0140-6736(09)60983-1