Protocol for a feasibility multi-centre randomised controlled trial of a pre-operative two-week very low-calorie diet to reduce steatosis prior to liver resection (RESOLVE) oleh Helen Neilens, Victoria Allgar, Lexy Sorrell, Jade Chynoweth, Matthew Bailey, Paigan Aspinall, Angela King, Tracey Parkin, Andrew MacCormick, Somaiah Aroori