Retraction Note: World J Surg (2017) 41:1040–1046 https://doi.org/10.1007/s00268-016-3845-y

This article has been retracted by the Editor-in-Chief at the request of the Corresponding Author Oh Jeong because the data have been presented in a misleading way. Contrary to the statement in the article, the patients were over the age of 60 and under the age of 70. Young Kyu Park agrees with this retraction. Mi Ran Jung and Seong Yoeb Ryu have not responded to correspondence from the Publisher about this retraction.