Past EXTRA Cohorts and Projects
- EXTRA Cohort 18 (2023)
- EXTRA Cohort 17 (2021)
- EXTRA Cohort 16 (2020)
- EXTRA Cohort 15 (2019)
- EXTRA Cohort 14 (2018)
- EXTRA Cohort 13 (2017)
- EXTRA Cohort 12 (2016)
- EXTRA Cohort 11 (2014)
- EXTRA Cohort 10 (2013)
- EXTRA Cohort 9 (2012)
- EXTRA Cohort 8 (2011)
- EXTRA Cohort 7 (2010)
- EXTRA Cohort 6 (2009)
- EXTRA Cohort 5 (2008)
- EXTRA Cohort 4 (2007)
- EXTRA Cohort 3 (2006)
- EXTRA Cohort 2 (2005)
- EXTRA Cohort 1 (2004)
