Refine My Results

Creation Date 

1. Before 1960  (63)
2. 1960 To 1975  (193)
3. 1976 To 1991  (2,673)
4. 1992 To 2008  (29,872)
5. After 2008  (232,559)
6. More options 

New Records 

1. New From Last Week  (144)
2. New From Last Month  (1,574)
3. New From Last 3 Month  (5,897)
4. More options 

Resource Type 

1. Articles  (248,772)
2. magazinearticle  (14,044)
3. Newsletter Articles  (725)
4. Books  (546)
5. Reports  (237)
6. Conference Proceedings  (232)
7. Thesises (postgraduate)  (125)
8. Reviews  (121)
9. Web Resources  (79)
10. Book Chapters  (53)
11. Newspaper Articles  (45)
12. Government Documents  (20)
13. Datasets  (8)
14. Standards  (1)
15. Text Resources  (1)
16. Other  (1)
17. More options 

Subject 

1. Science & Technology  (167,837)
2. Life Sciences & Biomedicine  (109,694)
3. Humans  (70,362)
4. Female  (43,943)
5. Health Aspects  (43,239)
6. Social Sciences  (40,263)
7. Studies  (38,338)
8. Male  (37,502)
9. Science & Technology - Other Topics  (35,280)
10. Multidisciplinary Sciences  (31,136)
11. Adult  (27,278)
12. Physical Sciences  (27,019)
13. Care And Treatment  (25,632)
14. Methods  (24,842)
15. Surveys  (24,482)
16. Technology  (22,865)
17. Middle Aged  (22,625)
18. Medical Research  (22,400)
19. Risk Factors  (22,388)
20. More options 

Databases 

1. ProQuest Central  (236,696)
2. DOAJ Directory of Open Access Journals  (160,332)
3. ROAD: Directory of Open Access Scholarly Resources  (150,061)
4. PubMed Central  (121,435)
5. GFMER Free Medical Journals  (116,912)
6. MEDLINE  (83,988)
7. Springer Nature OA/Free Journals  (53,191)
8. Public Library of Science (PLoS)  (31,210)
9. ProQuest One Psychology  (19,023)
10. Coronavirus Research Database  (14,196)
11. Taylor & Francis Open Access  (7,996)
12. DOVE Medical Press Journals  (7,816)
13. Wiley Online Library Open Access  (5,411)
14. U.S. Government Documents  (5,092)
15. Medknow Open Access Medical Journals  (4,847)
16. Education Resources Information Center (ERIC)  (4,752)
17. Freely Accessible Journals  (4,471)
18. HighWire Press (Free Journals)  (4,235)
19. SWEPUB Freely available online  (3,609)
20. Hyper Article en Ligne (HAL) (Open Access)  (2,869)
21. More options 

Language 

1. English  (263,312)
2. Japanese  (15,244)
3. Portuguese  (2,699)
4. Spanish  (1,119)
5. French  (497)
6. German  (494)
7. Afrikaans  (345)
8. Turkish  (252)
9. Norwegian  (206)
10. Lithuanian  (134)
11. Czech  (126)
12. Chinese  (124)
13. Italian  (47)
14. Russian  (33)
15. Polish  (20)
16. Bulgarian  (19)
17. Catalan  (17)
18. Slovak  (16)
19. Slovenian  (15)
20. Ukrainian  (13)
21. More options 

Journal Title 

1. Applied Sciences  (1,583)
2. Bmc Health Services Research  (2,611)
3. Bmc Infectious Diseases  (1,183)
4. Bmc Public Health  (4,763)
5. Peerj  (2,031)
6. Plos One  (29,239)
7. Sensors  (1,807)
8. Survey Of Current Business  (2,740)
9. Sustainability  (3,487)
10. Water  (1,929)
11. More options