Fig. 1
From: Photopheresis efficacy in the treatment of rheumatoid arthritis: a pre-clinical proof of concept
Typical clinical pattern of collagen-induced arthritis in male DBA/1 mice. Arthritis symptoms started 3 weeks after immunization. a The severity of arthritis was monitored by using the classical scoring system, based on paw swelling and erythema evolution. The value on each picture represents the score determined for the displayed paw. b Individual paw scores were summed to determine the clinical score of the mouse. Arthritis was mild at first, and became increasingly severe