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Articles by year of publication (N=30).
| Year | Articles, n (%) |
| 2004 | 1 (3) |
| 2005 | 0 (0) |
| 2006 | 0 (0) |
| 2007 | 1 (3) |
| 2008 | 1 (3) |
| 2009 | 1 (3) |
| 2010 | 2 (7) |
| 2011 | 2 (7) |
| 2012 | 1 (3) |
| 2013 | 2 (7) |
| 2014 | 3 (10) |
| 2015 | 1 (3) |
| 2016 | 0 (0) |
| 2017 | 2 (7) |
| 2018 | 3 (10) |
| 2019 | 2 (7) |
| 2020 | 8 (26) |
