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Creation Date 

1. Before 1957  (50,468)
2. 1957 To 1973  (83,700)
3. 1974 To 1990  (237,046)
4. 1991 To 2008  (1,012,164)
5. After 2008  (2,951,520)
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New Records 

1. New From Last Week  (5,516)
2. New From Last Month  (15,985)
3. New From Last 3 Month  (40,812)
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Resource Type 

1. Articles  (4,053,234)
2. Patents  (149,445)
3. Book Chapters  (33,144)
4. magazinearticle  (24,585)
5. Reviews  (18,092)
6. Reports  (15,070)
7. Thesises (postgraduate)  (9,929)
8. Conference Proceedings  (8,177)
9. Books  (5,388)
10. Newspaper Articles  (3,472)
11. References  (3,010)
12. Newsletter Articles  (2,125)
13. Web Resources  (1,587)
14. Images  (376)
15. Text Resources  (301)
16. Journals  (230)
17. Other  (93)
18. Datasets  (78)
19. Government Documents  (72)
20. Standards  (22)
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Subject 

1. Science & Technology  (3,088,517)
2. Life Sciences & Biomedicine  (2,593,353)
3. Humans  (1,416,917)
4. Animals  (1,032,961)
5. Male  (799,226)
6. Female  (747,408)
7. Biological And Medical Sciences  (539,925)
8. Medicine, Research & Experimental  (522,129)
9. Research & Experimental Medicine  (501,265)
10. Medical Sciences  (387,605)
11. Science & Technology - Other Topics  (371,453)
12. Adult  (367,678)
13. Mice  (352,315)
14. Multidisciplinary Sciences  (334,013)
15. Middle Aged  (306,037)
16. Physical Sciences  (288,692)
17. Proteins  (287,406)
18. Biochemistry & Molecular Biology  (267,094)
19. Health Aspects  (260,124)
20. Medical Research  (250,806)
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Databases 

1. ProQuest Central  (2,734,957)
2. MEDLINE  (2,314,229)
3. PubMed Central  (1,765,178)
4. DOAJ Directory of Open Access Journals  (1,651,684)
5. GFMER Free Medical Journals  (1,625,332)
6. ROAD: Directory of Open Access Scholarly Resources  (1,348,766)
7. Springer Nature OA/Free Journals  (462,520)
8. HighWire Press (Free Journals)  (348,818)
9. ProQuest One Psychology  (275,717)
10. Nature Open Access  (229,145)
11. Wiley-Blackwell Open Access Titles  (202,838)
12. Public Library of Science (PLoS)  (191,088)
13. esp@cenet  (139,267)
14. Journals@Ovid Open Access Journal Collection Rolling  (65,080)
15. IngentaConnect Free/Open Access Journals  (63,748)
16. Taylor & Francis Open Access  (59,892)
17. Coronavirus Research Database  (50,544)
18. SciELO  (48,431)
19. Hyper Article en Ligne (HAL) (Open Access)  (42,609)
20. SAGE Open Access Journals  (41,110)
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Language 

1. English  (4,228,985)
2. Japanese  (569,956)
3. Chinese  (99,764)
4. Portuguese  (56,389)
5. Spanish  (38,892)
6. German  (21,184)
7. French  (17,442)
8. Korean  (10,830)
9. Russian  (8,965)
10. Persian  (3,997)
11. Turkish  (3,406)
12. Polish  (2,607)
13. Norwegian  (2,545)
14. Ukrainian  (1,602)
15. Italian  (1,062)
16. Croatian  (858)
17. Dutch  (702)
18. Czech  (598)
19. Romanian  (510)
20. Indonesian  (450)
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Journal Title 

1. Bulletin Of Experimental Biology And Medicine  (30,836)
2. International Journal Of Molecular Sciences  (46,911)
3. Molecules  (33,055)
4. Nature Communications  (32,330)
5. Plos One  (157,389)
6. Scientific Reports  (105,548)
7. Sensors  (31,315)
8. The Journal Of Clinical Investigation  (30,812)
9. The Journal Of Experimental Medicine  (32,879)
10. Vaccine  (26,826)
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