23BB3A58-21C4-416A-A1C1-EC2131E00E0EDriving up the quality and relevance of research-based knowledge through the identification and use of core outcomes: the COMET InitiativeResearch GrantMR/J004847/1C008C651-F5B0-4859-A334-5F574AB6B57CMRCINCOME_ACTUAL174328FE5F89A4-6391-4EC9-BED7-C6DB98F02906Consensus on the Need for a Hierarchical List of Patient-reported Pain Outcomes for Metaanalyses of Knee Osteoarthritis Trials: An OMERACT Objective.The Journal of rheumatology9a1185754b54d2b278c3de32f5cf7377Christensen R2015-01-01http://dx.doi.org/10.3899/jrheum.14138425934823http://ukpmc.ac.uk/abstract/MED/259348230315-162Xhttp://europepmc.org/abstract/MED/259348234210Journal Article/Review56d9a2018bce01.99785294