de-identification terminology and classification of techniques</a>, 
<a href="https://www.iso.org/standard/63553.html">ISO/TS 25237 Health informatics - Pseudonymization</a>, 
<a href="http://nvlpubs.nist.gov/nistpubs/ir/2015/NIST.IR.8053.pdf">NIST IR 8053 - De-Identification of Personal Information</a>, 
<a href="http://wiki.ihe.net/index.php/Healthcare_De-Identification_Handbook">IHE De-Identification Handbook</a>, 
<a href="http://dicom.nema.org/medical/dicom/current/output/html/part15.html#chapter_E">DI