Which having a list of pages pointing to FHIR documentation is potentially helpful, listing the links to the resources used, especially if they're not the US Core versions may be distracting or confusing. I would suggest removing this part of the section or, at minimum, pointing to the USCore IG versions.

Existing Wording:

Implementers should also familiarize themselves with the FHIR resources used within the guide:

Proposed Wording:

Remove Text