Present: Due to a technical error, the following author names were indexed incorrectly in PubMed: Piris MA and Vaqué JP
Correct: The abbreviation has been updated to reflect correct spelling of these authors' names. The publisher sincerely apologizes for this oversight
Original Article: Oncotarget. 2015; 6: 25452-25465. doi: 10.18632/oncotarget.4545.