IL6 and Arthritis: The clusters were #0 Tripterygium wilfordii, #1 clinical trial, #2 toxicity, #3 synoviocytes, #4 angiogenesis, #5 glomerulonephritis, #6 collagen-induced arthritis, #7 apoptosis, #8 migration, #9 interleukin-6 #10 T-cells, and #11 anti-inflammation (Fig. 7B).