Indexing and Abstracting

Emerging Sources Citation Index (ESCI) Thomson Reuters-Web of Science

PubMed and PubMed Central

Scopus 

Directory of Open Access Journals (DOAJ)

Google Scholar

Islamic World Science Citation (ISC) 

WHO/EMR/Index Medicus

Index Copernicus

Academic Search Complete EBSCO Publishing databases

NLM Catalog 

Scientific Information Database

Open J Gate

Magiran