1 Breast Cancer Unit, Obstetrics and Gynecology, Women's Health Institute, Clíníco San Carlos Hospital, Madrid, Spain. Electronic address: jbrenes@ucm.es.
2 Breast Cancer Unit, Obstetrics and Gynecology, Women's Health Institute, Clíníco San Carlos Hospital, Madrid, Spain.
3 Clinical Trials and Research Unit, IdISSC, Health Department, International University of La Rioja, La Rioja, Spain.
4 Breast Cancer Unit, Psychology, Women's Health Institute, Clíníco San Carlos Hospital, Madrid, Spain.