1. Clarivate Analytics, Web of Science (ESCI)
  2. Index Medicus for South-East Asia Region (IMSEAR)
  3. Directory of Open Access Journals (DOAJ)
  4. Ulrich’s Periodicals Directory
  5. Library Catalogs
  6. NML - National Medical Library (USA)
  7. NML - National Medical Library, Prague, Czech Republic (Medvik)
  8. World cat
  9. CaRLO - Cancer Research Library Online (German Cancer Research Center / Deutsches Krebsforschungszentrum, Heidelberg)
  10. Others Organizations
  11. Polish Scholarly Bibliography (PBN)
  12. Wissenschaftszentrum Berlin fur Sozialforschung, Berlin (WZB Berlin Social Science Center)
  13. International Committee of Medical Journal Editors (ICMJE)
  14. International Society of Physiotherapy Journal Editors (WCPT under ISPJE Journals)
  15. WAME

And many more.........................