Standard wound management versus negative pressure wound therapy in the treatment of adult patients having surgical incisions for major trauma to the lower limb, a two arm parallel group superiority randomised controlled trial: protocol for Wound Healing in Surgery for Trauma (WHIST) - Achten, J; Vadher, K; Bruce, J; Nanchahal, J; Spoors, L; Masters, J; Dutton, S; Madan, J; Costa, M (BMJ Open, 2018)