Automated de-identification of free-text medical records. - Ishna Neamatullah; Margaret M. Douglass; Li-Wei H. Lehman; Andrew T. Reisner; Mauricio Villarroel; William J. Long; Peter Szolovits; George B. Moody; Roger G. Mark; Gari D. Clifford (BMC Medical Informatics Decis. Mak., 2008)