| Year |
Total (n) |
Article |
Review |
Meeting abstract |
Editorial material |
Letter |
| 1999 |
1 |
1 |
0 |
0 |
0 |
0 |
| 2000-2003 |
0 |
0 |
0 |
0 |
0 |
0 |
| 2004 |
3 |
0 |
0 |
3 |
0 |
0 |
| 2005 |
4 |
1 |
0 |
3 |
0 |
0 |
| 2006 |
5 |
3 |
0 |
1 |
1 |
0 |
| 2007 |
13 |
6 |
2 |
4 |
0 |
1 |
| 2008 |
14 |
9 |
0 |
5 |
0 |
0 |
| 2009 |
13 |
12 |
0 |
1 |
0 |
0 |
| 2010 |
27 |
22 |
3 |
1 |
1 |
0 |
| 2011 |
30 |
27 |
2 |
1 |
0 |
0 |
|
