Serum YKL-40 and IL-6 levels correlate with ultrasound findings of articular and periarticular involvement in patients with systemic sclerosis

Karalilova, R., Kazakova, M., Sapundzhieva, T., Dichev, V., Batalov, Z., Sarafian, V., & Batalov, A. (). Serum YKL-40 and IL-6 levels correlate with ultrasound findings of articular and periarticular involvement in patients with systemic sclerosis. Rheumatology International; Rheumatology International.