UNITS (Understanding Needs and Interventions for Treatment of Scarring) was the first study of its kind to assess the psychological impact of an altered appearance as a result of scarring and limb loss sustained during military conflict. The team worked with veterans who have been seriously wounded during their deployment to develop tailored support materials to support them and their families to adjust to life with a visible difference.

The study was led by Dr Mary Keeling, Associate Professor Heidi Williamson, and Professor Diana Harcourt of the Centre for Appearance Research at the University of the West of England. Members of the CASEVAC Club, made up of veterans who were casualty evacuated from recent operations in Iraq and Afghanistan, assisted with its design.