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Article metrics provide readers and authors with an indication of how often a specific article has been accessed month by month. It counts three formats - abstract/extract, full text and pdf. The page is updated each day.
| Month | Abstract | Full | |
|---|---|---|---|
| June 2013 | 11 | 477 | 40 |
| May 2013 | 38 | 1009 | 118 |
| April 2013 | 3 | 986 | 95 |
| March 2013 | 0 | 1050 | 47 |
| February 2013 | 0 | 876 | 98 |
| January 2013 | 0 | 709 | 58 |
| December 2012 | 0 | 824 | 65 |
| November 2012 | 0 | 1543 | 191 |
| October 2012 | 0 | 1519 | 225 |
| September 2012 | 62 | 1531 | 293 |
| August 2012 | 64 | 1235 | 158 |
| July 2012 | 70 | 1171 | 190 |
| June 2012 | 66 | 1657 | 351 |
| May 2012 | 375 | 1947 | 218 |
| April 2012 | 4 | 2768 | 317 |
| March 2012 | 0 | 3014 | 382 |
| February 2012 | 0 | 3497 | 340 |
| January 2012 | 0 | 3811 | 358 |
| December 2011 | 0 | 3698 | 470 |
| November 2011 | 855 | 3105 | 744 |
| October 2011 | 6250 | 4492 | 2983 |
| September 2011 | 17459 | 11644 | 5503 |
| August 2011 | 24652 | 6306 | 4034 |
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