Comment on

• Long-term results of laparoscopic gastrectomy for gastric cancer: a large-scale case-control and case-matched Korean multicenter study.

  Kim HH, Han SU, Kim MC, Hyung WJ, Kim W, Lee HJ, Ryu SW, Cho GS, Song KY, Ryu SY. Kim HH, et al. J Clin Oncol. 2014 Mar 1;32(7):627-33. doi: 10.1200/JCO.2013.48.8551. Epub 2014 Jan 27. J Clin Oncol. 2014. PMID: 24470012
• Retrospective propensity score matching and the selection of surgical procedures: how precise can a propensity estimate be?

  Honda M, Yamamoto K, Furukawa TA. Honda M, et al. J Clin Oncol. 2014 Oct 1;32(28):3200-1. doi: 10.1200/JCO.2014.55.9682. Epub 2014 Aug 11. J Clin Oncol. 2014. PMID: 25113754 No abstract available.