M E D I T E R R A N E A N J O U R N A L O F R H E U M A T O L O G Y E-ISSN: 2529-198X MEDITERRANEAN JOURNAL OF RHEUMATOLOGY Serum Calprotectin is Indicating Clinical and Ultrasonographic Disease Activity in Rheumatoid Arthritis, even with Normal C-Reactive Protein Levels Murat Torgutalp, Mucteba Enes Yayla, Didem Sahin Eroglu, Ayse Bahar Kelesoglu Dincer, Emine Uslu Yurteri, Ilyas Ercan Okatan, Serdar Sezer, Emine Gozde Aydemir Guloksuz, Ebru Us, Tahsin Murat Turgay, Gulay Kinikli, Askin Ates Mediterr J Rheumatol 2021;32(1):56-65 March 2021 | Volume 32 | Issue 1