1 Medical Centre Defence Primary Healthcare, Infantry Training Centre Catterick Garrison, North Yorkshire, UK
2 Department of Occupational Medicine, HQ Army Recruiting and Training Division, Trenchard Lines, Wilts, SN9 6BE, UK
3 Academic Department of Military Rehabilitation DMRC Headley Court, Surrey, UK
4 School of Social Sciences and Law, Teesside University, Middlesbrough, UK