Additional file 1: Figure S1. of Tight intra-operative blood pressure control versus standard care for patients undergoing hip fracture repair – Hip Fracture Intervention Study for Prevention of Hypotension (HIP-HOP) trial: study protocol for a randomised controlled trial MoppettIain WhiteStuart GriffithsRichard BuggyDonal 2017 SPIRIT schedule of enrolment, interventions and assessments. (DOCX 78 kb)