Table 2.

Inclusion and exclusion criteria.

Criteria	Inclusion	Exclusion
Subject	Full articles that deal with FHIRa	Articles that do not deal with FHIR or related acronyms, or do not address issues related to our research questions
Language	Articles published in English journals/proceedings	Articles published in non-English journals/proceedings
Access	Articles that provide access to the full text	Articles without access to the full text
Venue	Articles published in high-impact-factor conference proceedings or peer-reviewed journals	Articles from nonreputable journals/proceedings as well as books, notes, chapters, and press reports
Study type	Primary study	Nonprimary study, including literature review, informal literature surveys, theses, and articles that discuss aspects of health care without reference to FHIR
Publication history	Clear evidence of the article’s print procedure and venue	Publication process with no proper scientific peer review or no clear evidence of the print venue
Keywords	Describe at least one part of our search string	Do not describe any part of the search string

^aFHIR: Fast Health Interoperability Resources.