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Table 2 Database access and coverage

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