Use and detailed metric properties of patient-reported outcome measures for rheumatoid arthritis: a systematic review covering two decades oleh Gerold Stucki, Åsa Lundgren-Nilsson, Reuben Escorpizo, Ayse A Küçükdeveci, Sehim Kutlay, Atilla H Elhan, Alan Tennant, Philip G Conaghan, Beyza D Erdoğan, Derya Gökmen, Can Ateş, Selcen Yüksel