The default for payload structure is to load the full field values for the first level of simple field types (text, select boxes, radio buttons, etc). More complex field types like the field collections (Profile Boards) or entity references (Course ACCME Data), will display a reference to that additional data type. Using additional parameters you can both load additional data, or limit what is returned.
Additional data (load-entity-
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refs=ENTITY_TYPE)
Using the load-entity-refrefs parameter, you can load additional data types in the initial return. Any field returning an external entity can be instructed to load the additional data. You may also load multiple types by sending a comma separated list of entity types. For example, sending load-entity-refs=taxonomy_term,accme_data to the node.json endpoint will load both the taxonomy terms and ACCME data attached to all returned courses.
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