From: Effectiveness of telemedicine diabetic retinopathy screening in the USA: a protocol for systematic review and meta-analysis
Database
Vendor
Coverage start
MEDLINE via PubMed
NIH
1966
Web of Science Core Collection
Clarivate
Sciences: 1900-present
Social sciences: 1900-present
Arts & humanities: 1975-present
Scopus
Elsevier
1996