Red Talk-Green Talk Matters when Stakes are HighDAVIDSON, I.Author informationDepartment of Surgery, University of Texas Southwestern Medical Center at Dallas, Dallas, TX - USATo improve is to change;To be perfect is to change often.Winston ChurchillThe Journal of Vascular Access 9(3):p 171-172, July 2008.Copyright © 2008Wichtig Publishing - Milano (Italia)