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Creation Date 

1. Before 1975  (47)
2. 1975 To 1986  (758)
3. 1987 To 1998  (2,727)
4. 1999 To 2011  (25,993)
5. After 2011  (29,167)
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Subject 

1. Human Necessities  (42,525)
2. Hygiene  (40,722)
3. Medical Or Veterinary Science  (40,722)
4. Preparations For Medical, Dental, Or Toilet Purposes  (37,682)
5. Chemistry  (31,935)
6. Metallurgy  (31,935)
7. Specific Therapeutic Activity Of Chemical Compounds Ormedicinal Preparations  (29,121)
8. Organic Chemistry  (28,173)
9. Heterocyclic Compounds  (20,945)
10. Wine  (5,606)
11. Microbiology  (5,606)
12. Biochemistry  (5,606)
13. Spirits  (5,606)
14. Vinegar  (5,606)
15. Mutation Or Genetic Engineering  (5,606)
16. Beer  (5,606)
17. Enzymology  (5,606)
18. Physics  (4,833)
19. Peptides  (4,712)
20. Acyclic Or Carbocyclic Compounds  (4,219)
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Databases 

1. esp@cenet  (50,000)
2. USPTO Published Applications  (4,818)
3. USPTO Issued Patents  (3,873)
4. PolyU Institutional Research Archive  (1)
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Language 

1. English  (50,945)
2. French  (13,778)
3. Chinese  (6,358)
4. German  (6,287)
5. Spanish  (3,060)
6. Korean  (2,056)
7. Russian  (1,358)
8. Japanese  (1,337)
9. Portuguese  (1,151)
10. Hebrew  (468)
11. Danish  (404)
12. Norwegian  (309)
13. Polish  (301)
14. Hungarian  (210)
15. Slovenian  (182)
16. Finnish  (162)
17. Ukrainian  (141)
18. Croatian  (134)
19. Czech  (114)
20. Italian  (72)
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