Literature Databases and Justification

China NMPA

Database	Link	Justification
PubMed	http://www.ncbi.nlm.nih.gov/pubmed/	Primary scientific database containing over 22 million biomedical citations from MEDLINE, life science journals, and online books.
EMBASE	https://www.embase.com/	Biomedical and pharmacological bibliographic database with over 32 million records from 8,500+ journals (1947–present), produced by Elsevier.
CNKI	https://www.cnki.net/	China National Knowledge Infrastructure — comprehensive Chinese academic database covering journals, dissertations, conference papers, and more.
Wanfang Med Online	http://med.wanfangdata.com.cn/	Large-scale Chinese academic database covering journals, conference proceedings, dissertations, and academic works.

EU MDR

Table A.2 Scientific Literature Databases

Database	Link	Justification
PubMed	http://www.ncbi.nlm.nih.gov/pubmed/	Over 22 million citations for biomedical literature from MEDLINE, life science journals, and online books, covering biomedicine, health, life sciences, behavioral sciences, chemical sciences, and bioengineering.
Embase	https://www.embase.com/	Biomedical and pharmacological bibliographic database with over 32 million records from 8,500+ journals (1947–present). International coverage spans 95 countries.
Cochrane Library	https://www.cochranelibrary.com/	Collection of high-quality independent evidence databases including the Cochrane Database of Systematic Reviews (CDSR) and the Cochrane Central Register of Controlled Trials (CENTRAL).