V3 Normative publication of HL7 Version 3 Standard: Implantable Device Cardiac – Follow-up Summary, Release 2 (reaffirmation) April 30, 2020April 30, 2020 Lynn Laakso Normative, Reaffirmation, Universal Realm Learn more at http://www.hl7.org/implement/standards/product_brief.cfm?product_id=41