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Interface engines are hard to use?
HL7 engineers aren’t very clever?
HL7 is difficult and we should be using FHIR?
If you are curious about this problem skip to minute 34 of the video as found by Matt.
<joke!>. The issue is that there is a big communication process required when getting a large healthcare system to test out an interface - think boundary cases like when you have twins or triplets. See this article talking about the fundaments of optimizing a communication process.
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