Hall, Michelle C, Fuller, Amy, Nomikos, Polykarpos Angelos, Millar, Bonnie, Ogollah, Reuben, Valdes, Ana, Greenhaff, Paul, Das Nair, Roshan, Doherty, Michael, Walsh, David A, Abhishek, Abhishek, "The East Midlands Knee Pain Multiple Randomised Controlled Trial Cohort Study: Cohort Establishment and Feasibility study protocol", BMJ Open, 2020