The Advance Study is a research programme into the long-term health of military personnel injured in Afghanistan between 2003 and 2014.
It is looking for new participants.
Servicemen or veterans who were under 50 when they deployed are asked to get in touch on 01509 251500 ext 3408.
The team wants to hear from those who were medically evacuated by air directly to a UK hospital, as well as those who were not injured and may provide a match in age, rank and role to one of this cohort.
Taking part involves six separate day visits to DMRC Stanford Hall, Loughborough for a health MOT over 20 years.
Travel and accommodation costs are reimbursed, and participants receive £100 per visit as a thank you.
Visit http://www.advancestudydmrc.org.uk for more information.