Some Lessons from Earlier ExchangesThe New HIE RulesStrong StandardsWinning ProtocolsThe Billing ProtocolsHL7 Version 2First-Generation and Second-Generation HIEsContinuity of Care RecordHL7 v3, RIM, CDA, CDD, and HITSP C32The IHE ProtocolHIE with IHEManaging Patient Identifiers with IHEIHE Data Exchange, the Library ModelIHE in the NWHINThe Direct Project/ProtocolThe PCAST ReportThe SMART PlatformTechnology and Policy Were Sitting in the Tree