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5. After 2008  (10,964,219)
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1. Science Citation Index Expanded (Web of Science)  (12,745,507)
2. DOAJ Directory of Open Access Journals  (7,978,579)
3. PubMed Central (Open access)  (6,783,264)
4. ROAD  (5,946,125)
5. Gale Academic OneFile Select  (5,229,180)
6. BACON - Mir@bel - GLOBAL_LIBRESACCES  (5,163,333)
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1. Plos One  (283,364)
2. Scientific Reports  (201,681)
3. The Journal Of Biological Chemistry  (163,058)
4. Proceedings Of The National Academy Of Sciences - Pnas  (141,534)
5. Journal Of Biological Chemistry/˜the œjournal Of Biological Chemistry  (139,891)
6. Proceedings Of The National Academy Of Sciences Of The United States Of America  (128,506)
7. Science  (124,221)
8. The Astrophysical Journal  (114,013)
9. Physical Review Letters  (111,172)
10. International Journal Of Molecular Sciences  (84,742)
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