Abstracting/Indexing
Chemical Abstracts Service (CAS)
ProQuest Health & Medical Collection
ProQuest Health Research Premium Collection
ProQuest Hospital Premium Collection
ProQuest Biological Science Database
EBSCO-CENTRAL & EASTERN EUROPEAN ACADEMIC SOURCE (CEEAS)
OCLC WorldCat Discovery Service
Gale Health Reference Center Academic
Index Copernicus (ICI Journals Master List)
China National Knowledge Infrastructure (CNKI) Scholar
EZB (Electronic Journals Library), ZDB (German National Serials Database)
Geneva Foundation for Medical Education and Research
NYU Health Sciences Library-New York
ROAD: the Directory of Open Access scholarly Resources
BASE (Bielefeld Academic Search Engine)
International Committee of Medical Journal Editors (ICMJE)
