Refine My Results

Creation Date 

1. Before 1959  (103,163)
2. 1959 To 1974  (186,074)
3. 1975 To 1990  (1,118,205)
4. 1991 To 2007  (3,559,459)
5. After 2007  (8,104,399)
6. More options 

New Records 

1. New From Last Month  (38,231)
2. New From Last 3 Month  (429,712)
3. More options 

Resource Type 

1. Patents  (13,086,266)
2. Articles  (1,903)
3. Reviews  (25)
4. magazinearticle  (20)
5. Book Chapters  (11)
6. Conference Proceedings  (2)
7. Text Resources  (1)
8. Newspaper Articles  (1)
9. References  (1)
10. More options 

Subject 

1. Hygiene  (13,086,272)
2. Human Necessities  (13,086,264)
3. Medical Or Veterinary Science  (13,086,262)
4. Preparations For Medical, Dental, Or Toilet Purposes  (6,277,872)
5. Chemistry  (3,877,163)
6. Metallurgy  (3,877,137)
7. Specific Therapeutic Activity Of Chemical Compounds Ormedicinal Preparations  (3,776,192)
8. Organic Chemistry  (2,952,882)
9. Diagnosis  (2,798,032)
10. Surgery  (2,798,021)
11. Identification  (2,797,993)
12. Heterocyclic Compounds  (1,577,897)
13. Devices For Introducing Media Into, Or Onto, The Body  (1,396,836)
14. Devices For Producing Or Ending Sleep Or Stupor  (1,396,836)
15. Devices For Transducing Body Media Or For Taking Media Fromthe Body  (1,396,836)
16. First-Aid Kits  (1,354,760)
17. Orthopaedic, Nursing Or Contraceptive Devices  (1,354,760)
18. Filters Implantable Into Blood Vessels  (1,354,760)
19. Bandages, Dressings Or Absorbent Pads  (1,354,760)
20. Fomentation  (1,354,760)
21. More options 

Databases 

1. esp@cenet  (13,086,265)
2. ProQuest Central  (1,454)
3. MEDLINE  (1,137)
4. PubMed Central  (904)
5. GFMER Free Medical Journals  (872)
6. DOAJ Directory of Open Access Journals  (812)
7. ROAD: Directory of Open Access Scholarly Resources  (716)
8. Springer Nature OA/Free Journals  (263)
9. Public Library of Science (PLoS)  (191)
10. HighWire Press (Free Journals)  (186)
11. Nature Open Access  (133)
12. Wiley Online Library Open Access  (112)
13. ProQuest One Psychology  (110)
14. IngentaConnect Free/Open Access Journals  (69)
15. Coronavirus Research Database  (59)
16. JSTOR Early Journal Content  (37)
17. Oxford Journals Open Access Collection  (31)
18. Taylor & Francis Open Access  (28)
19. Journals@Ovid Open Access Journal Collection Rolling  (24)
20. Mary Ann Liebert Online - Open Access  (15)
21. More options 

Language 

1. English  (10,618,186)
2. French  (2,761,709)
3. Chinese  (2,590,819)
4. German  (1,718,447)
5. Japanese  (556,917)
6. Korean  (504,597)
7. Spanish  (438,750)
8. Russian  (251,607)
9. Portuguese  (219,399)
10. Danish  (100,509)
11. Italian  (66,976)
12. Norwegian  (60,992)
13. Finnish  (56,301)
14. Swedish  (54,702)
15. Polish  (52,768)
16. Ukrainian  (31,740)
17. Dutch  (25,881)
18. Hungarian  (24,750)
19. Hebrew  (22,724)
20. Slovenian  (19,487)
21. More options 

Journal Title 

1. Bmc Public Health  (32)
2. Injury Prevention  (37)
3. Journal Of Medical Entomology  (23)
4. Leukemia  (29)
5. Nature  (23)
6. Plos Neglected Tropical Diseases  (38)
7. Plos One  (146)
8. Proceedings Of The National Academy Of Sciences - Pnas  (31)
9. Scientific Reports  (31)
10. The Lancet  (48)
11. More options