Table 6

Composition of unique 2003 Google Scholar material

Source of unique material

Oncology

CM Physics


Journal

31 (62 %)

18 (37%)

Archive

3 (6%)

12 (25%)

College or University

9 (18%)

6 (13%)

Government

3 (6%)

4 (8%)

Non-Governmental Organization

2 (4%)

8 (17 %)

Commercial

0

0

Other

2 (4%)

0

Total

50

48


Bakkalbasi et al. Biomedical Digital Libraries 2006 3:7   doi:10.1186/1742-5581-3-7

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