Distribution of Articles as Classified by Type and Year of Publication
| 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Clinical study | 6 | 6 | 6 | 3 | 4 | 2 | 2 | 4 | 1 | 2 | 36 |
| Preclinical study | 0 | 2 | 2 | 3 | 3 | 11 | 7 | 9 | 10 | 3 | 50 |
| Literary study | 2 | 2 | 2 | 3 | 3 | 1 | 3 | 2 | 3 | 8 | 29 |
| Case report | 2 | 1 | 0 | 2 | 0 | 5 | 4 | 3 | 2 | 1 | 20 |
| Total | 10 | 11 | 10 | 11 | 10 | 19 | 16 | 18 | 16 | 14 | 135 |
