| item | freq | year_q1 | year_med | year_q3 |
| clinical-trials | 13 | 2006 | 2010 | 2018 |
| aids | 13 | 2006 | 2011 | 2017 |
| clinical-research | 6 | 2010 | 2011 | 2017 |
| consultation | 7 | 2012 | 2013 | 2016 |
| hiv | 7 | 2010 | 2013 | 2022 |
| empowerment | 5 | 2011 | 2013 | 2019 |
| advisory boards | 6 | 2012 | 2014 | 2016 |
| transmission | 7 | 2011 | 2015 | 2016 |
| ethics | 5 | 2008 | 2015 | 2016 |
| hiv/aids | 6 | 2014 | 2016 | 2019 |