Refine My Results

Creation Date 

1. Before 1957  (748,474)
2. 1957 To 1973  (759,631)
3. 1974 To 1990  (3,554,546)
4. 1991 To 2008  (9,312,393)
5. After 2008  (16,969,026)
6. More options 

New Records 

1. New From Last Week  (554)
2. New From Last Month  (408,678)
3. New From Last 3 Month  (463,551)
4. More options 

Resource Type 

1. Patents  (21,039,383)
2. Articles  (9,742,685)
3. Book Chapters  (263,304)
4. magazinearticle  (149,670)
5. Reports  (48,605)
6. Books  (41,950)
7. Newspaper Articles  (37,798)
8. Reviews  (33,128)
9. Conference Proceedings  (20,518)
10. Thesises (postgraduate)  (18,260)
11. Web Resources  (13,238)
12. Images  (6,568)
13. Newsletter Articles  (4,413)
14. Text Resources  (2,498)
15. References  (1,449)
16. Government Documents  (1,277)
17. Datasets  (650)
18. Archival Material / Manuscripts  (386)
19. Videos  (379)
20. Other  (227)
21. More options 

Subject 

1. Human Necessities  (21,039,380)
2. Hygiene  (10,489,181)
3. Medical Or Veterinary Science  (10,477,223)
4. Humans  (9,004,725)
5. Science & Technology  (7,551,619)
6. Life Sciences & Biomedicine  (7,084,282)
7. Preparations For Medical, Dental, Or Toilet Purposes  (4,906,956)
8. Chemistry  (3,926,469)
9. Female  (3,800,488)
10. Metallurgy  (3,765,480)
11. Male  (3,502,890)
12. Agriculture  (3,296,642)
13. Hunting  (3,253,268)
14. Forestry  (3,252,155)
15. Animal Husbandry  (3,250,982)
16. Fishing  (3,250,242)
17. Trapping  (3,248,564)
18. Surgery  (2,892,839)
19. Specific Therapeutic Activity Of Chemical Compounds Ormedicinal Preparations  (2,891,730)
20. Furniture  (2,849,824)
21. More options 

Databases 

1. esp@cenet  (21,039,380)
2. MEDLINE  (8,969,178)
3. ProQuest Central  (4,925,097)
4. GFMER Free Medical Journals  (3,546,891)
5. PubMed Central  (2,904,118)
6. DOAJ Directory of Open Access Journals  (2,113,932)
7. ROAD: Directory of Open Access Scholarly Resources  (1,592,738)
8. HighWire Press (Free Journals)  (1,419,984)
9. ProQuest One Psychology  (726,046)
10. Springer Nature OA/Free Journals  (451,486)
11. Wiley-Blackwell Open Access Titles  (439,849)
12. Nature Open Access  (250,996)
13. Ebook Central - Academic Complete  (246,287)
14. Journals@Ovid Open Access Journal Collection Rolling  (194,343)
15. IngentaConnect Free/Open Access Journals  (189,245)
16. Public Library of Science (PLoS)  (187,615)
17. Freely Accessible Journals  (136,678)
18. JSTOR Early Journal Content  (103,275)
19. Coronavirus Research Database  (99,533)
20. Hyper Article en Ligne (HAL) (Open Access)  (89,991)
21. More options 

Language 

1. Chinese  (5,011,241)
2. French  (3,728,510)
3. German  (2,000,773)
4. Japanese  (1,615,194)
5. Korean  (872,426)
6. Russian  (300,790)
7. Portuguese  (108,242)
8. Spanish  (95,736)
9. Polish  (88,969)
10. Hungarian  (36,779)
11. Ukrainian  (36,591)
12. Czech  (31,878)
13. Hebrew  (27,368)
14. Slovenian  (24,757)
15. Croatian  (15,573)
16. Serbian  (13,315)
17. Italian  (12,078)
18. Dutch  (11,557)
19. Bulgarian  (10,313)
20. More options 

Journal Title 

1. Blood  (40,563)
2. Bmj  (117,263)
3. British Medical Journal  (70,253)
4. Nature  (39,874)
5. Plos One  (157,180)
6. Proceedings Of The National Academy Of Sciences - Pnas  (49,918)
7. Scientific Reports  (65,488)
8. The Journal Of Biological Chemistry  (73,947)
9. The Lancet  (126,477)
10. The New England Journal Of Medicine  (73,218)
11. More options