What is the purpose of PubMed?

Related questions

1. What is a PubMed ID number?
2. How do I get indexed on PubMed?
3. Are PubMed articles free?
4. How long does it take for article to appear on PubMed?
5. Is PubMed free?
6. What is NCBI PMC?
7. How do you tell if an article is peer reviewed in PubMed?
8. What is PMC ID?
9. How many articles are there in PubMed?

Tags

1. #medline
2. #search
3. #engine
4. #references
5. #information
6. #biomedical
7. #national
8. #united
9. #entrez
10. #system
11. #primarily
12. #health
13. #accessing
14. #institutes
15. #pubmed
16. #sciences
17. #medicine
18. #maintains
19. #retrieval
20. #states
21. #topics
22. #abstracts
23. #database
24. #library