Erratum to: Ann Surg Oncol DOI 10.1245/s10434-011-1663-x

The article that has been published online on 23 March 2011, DOI 10.1245/s10434-011-1663-x has an error that need to be corrected.

In the abstract (result paragraph first line) the study period is given from 1975 to 1995. This is incorrect. 1995 should be replaced with 2004.