Table 1.

Description of electronic databases and resources

	Publisher	Access	Type	Coverage
CINAHL [10]	EBSCO	by subscription	indexed database	nursing, biomedicine, health sciences librarianship, alternative medicine, and allied health topics
Embase [8]	Elsevier	by subscription	indexed database	biomedical literature, 1947 to present
Epistemonikos [16]	Epistemonikos foundation (non-profit)	free of charge	citations database, data scraped from other databases and the web	health evidence, nine supported languages [22, 23]
MEDLINE [7]	U.S. National Library of Medicine (non-profit)	free of charge	indexed database	biomedicine and health literature, 1966 to present [24]
PsycINFO [11]	EBSCO, American Psychological Association	by subscription	indexed database	behavioural science and mental health
TRIP [17]	Trip Inc.	free of charge	clinical search engine	health care [25]

Psyc. topic = mental health- or psychology-related topic