| Walter V Sujansky The development of a highly constrained health level 7 implementation guide to facilitate electronic laboratory reporting to ambulatory electronic health record systemsWalter V Sujansky Sujansky and Associates LLC, San Carlos, CA 94070, USA J Am Med Inform Assoc 16:285-90. 2009 A method to implement fine-grained access control for personal health records through standard relational database queriesWalter V Sujansky Sujansky and Associates, LLC, San Carlos, CA, USA J Biomed Inform 43:S46-50. 2010
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