ACCURACY OF THE OMERACT DEFINITIONS FOR IDENTIFICATION OF CALCIUM PYROPHOSPHATE CRYSTALS WITH ULTRASOUND: FINAL RESULTS OF THE OMERACT US IN CPPD SUB-TASK FORCE STUDY - Filippou, G.; Scanu, A.; Adinolfi, A.; Toscano, C.; Gambera, D.; Largo, R.; Naredo, E.; Calvo, E.; Herrero-Beaumont, G.; Zufferey, P.; Madelaine-Bonjour, C.; Maccarter, D.; et al. (Annals Of The Rheumatic Diseases, 2020)