BÜHLMANN sCAL ELISA:
Hurnakova J et al.: Relationship between serum calprotectin (S100A8/9) and clinical, laboratory and
ultrasound parameters of disease activity in rheumatoid arthritis: A large cohort study. PLoS ONE, 2017: 12(8): 1-11. PMID: 28832684 doi: 10.1371/journal.pone.0183420