Erratum to: Clin Transl Oncol (2015) 17:996–1004 DOI 10.1007/s12094-015-1456-y

The affiliation of the author A. Custodio was rendered wrongly. The correct affiliation is: Medical Oncology Department, Hospital Universitario La Paz, Madrid, Spain. The authors regret this error and apologize for any inconvenience caused.