The strength of the recommendation assigned to this reference. The code system used specifies the rating scale used to rate this recommendation while the code specifies the actual recommendation rating (represented as a coded value) associated with this recommendation.
Project FHIR API
This is the location where you can find your resource using a FHIR client.
Simplifier FHIR API
The global endpoint is where users can search for all resources in Simplifier. Resources have a globally unique guid Id here.