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Creation Date 

1. Before 1957  (344,818)
2. 1957 To 1973  (230,006)
3. 1974 To 1990  (999,496)
4. 1991 To 2008  (5,600,965)
5. After 2008  (10,710,646)
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New Records 

1. New From Last Week  (11,155)
2. New From Last Month  (44,128)
3. New From Last 3 Month  (135,610)
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Resource Type 

1. Articles  (14,855,825)
2. magazinearticle  (991,050)
3. Reports  (609,960)
4. Reviews  (480,023)
5. Patents  (371,188)
6. Newspaper Articles  (263,231)
7. Book Chapters  (124,307)
8. Newsletter Articles  (52,355)
9. Thesises (postgraduate)  (32,336)
10. Books  (25,777)
11. Conference Proceedings  (22,500)
12. References  (12,319)
13. Datasets  (6,336)
14. Web Resources  (5,485)
15. Government Documents  (2,497)
16. Text Resources  (2,334)
17. Journals  (2,116)
18. Images  (1,243)
19. Other  (804)
20. Standards  (521)
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Subject 

1. Science & Technology  (9,254,077)
2. Life Sciences & Biomedicine  (8,015,672)
3. Humans  (4,968,746)
4. Biological And Medical Sciences  (2,746,700)
5. Female  (2,574,006)
6. Male  (2,518,927)
7. Animals  (1,973,568)
8. Medical Sciences  (1,506,016)
9. Adult  (1,444,955)
10. Fundamental And Applied Biological Sciences. Psychology  (1,355,932)
11. Middle Aged  (1,290,846)
12. Aged  (954,364)
13. Patients  (850,908)
14. Medicine  (791,574)
15. Science & Technology - Other Topics  (787,687)
16. General & Internal Medicine  (785,503)
17. Medicine, General & Internal  (730,631)
18. Biochemistry & Molecular Biology  (723,829)
19. Multidisciplinary Sciences  (709,215)
20. Physical Sciences  (702,872)
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Author/Creator 

1. Guo, Bing  (193)
2. Olson, Steve  (131)
3. Hailey, David  (116)
4. Ospina, Maria  (89)
5. Chan, Lisa  (55)
6. Scott, Ann  (39)
7. Corabian, Paula  (29)
8. Juzwishin, Don  (27)
9. Moga, Carmen  (20)
10. Rhomberg, Lorenz  (18)
11. Hailey, David  (14)
12. Ulmer, Cheryl  (11)
13. Birdsell, Judy  (9)
14. Institute of Medicine (U.S.)  (8)
15. Wanke, Margaret  (6)
16. Corabian, Paula  (5)
17. Guo, Bing  (5)
18. National Research Council (U.S.)  (5)
19. Board on Health Sciences Policy  (4)
20. Moga, Carmen  (3)
21. Simon, Anita  (3)
22. Institute of Medicine Staff  (3)
23. Kmet, Leanne  (3)
24. Scott, Ann  (3)
25. Birdsell, Judy  (3)
26. Wanke, Margaret  (2)
27. Ospina, Maria  (2)
28. RAND Health  (2)
29. Juzwishin, Don  (2)
30. Olson, Steve  (2)
31. Chan, Lisa  (2)
32. Kmet, Leanne  (2)
33. Simon, Anita  (2)
34. Center for Military Health Policy Research  (2)
35. National Defense Research Institute (U.S.)  (2)
36. Deber, Raisa B  (2)
37. Rand Corporation  (2)
38. Zakzouk, Mohamed  (2)
39. Medical Follow-Up Agency, Institute of Medicine  (2)
40. Beachy, Sarah H  (1)
41. Ulmer, Cheryl  (1)
42. Manning, Frederick J  (1)
43. Woodward, John D  (1)
44. Gary Cecchine  (1)
45. Rhomberg, Lorenz  (1)
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Databases 

1. ProQuest Central  (13,123,736)
2. MEDLINE  (6,995,033)
3. GFMER Free Medical Journals  (5,381,659)
4. PubMed Central  (5,176,061)
5. DOAJ Directory of Open Access Journals  (4,186,485)
6. ROAD: Directory of Open Access Scholarly Resources  (3,402,580)
7. HighWire Press (Free Journals)  (1,851,995)
8. ProQuest One Psychology  (1,270,359)
9. Springer Open Access Journals  (1,066,137)
10. US Government Documents  (647,195)
11. Open Access: Nature Open Access  (517,239)
12. Open Access: Wiley-Blackwell Open Access Journals  (505,944)
13. PLoS (Open access)  (359,686)
14. esp@cenet  (347,537)
15. Open Access: Freely Accessible Journals by multiple vendors  (274,162)
16. Coronavirus Research Database  (256,483)
17. Journals@Ovid Open Access Journal Collection Rolling  (210,261)
18. Taylor & Francis Open Access Journals  (179,728)
19. JSTOR Early Journal Content  (169,759)
20. Medknow Open Access Journals  (162,405)
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Language 

1. English  (17,638,021)
2. Japanese  (1,455,190)
3. French  (156,051)
4. German  (99,540)
5. Chinese  (92,250)
6. Portuguese  (91,209)
7. Spanish  (55,654)
8. Turkish  (24,739)
9. Russian  (18,775)
10. Korean  (18,352)
11. Polish  (14,337)
12. Persian  (12,767)
13. Norwegian  (10,751)
14. Italian  (6,045)
15. Ukrainian  (4,131)
16. Croatian  (3,938)
17. Danish  (3,840)
18. Dutch  (3,331)
19. Romanian  (3,197)
20. Slovenian  (3,014)
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Journal Title 

1. Barron's National Business And Financial Weekly  (134,425)
2. Bmj  (365,903)
3. British Medical Journal  (336,228)
4. Library Journal  (100,983)
5. Nature  (129,910)
6. New York Times  (180,762)
7. Plos One  (296,926)
8. Reactions Weekly  (170,866)
9. Scientific Reports  (197,966)
10. The Lancet  (114,502)
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