Clinical disease scores in animals with collagen-induced arthritis and diet supplementation. Clinical disease scores in animals with collagen-induced arthritis (CIA) and supplementation of either the normal diet (N) or the phosphatidylcholine-enriched diet, starting either with CIA induction (PCpre) or with the clinical onset of the disease (PCther). For the induction of CIA, animals were immunized twice with collagen II and complete Freund's adjuvant/incomplete Freund's adjuvant. Three weeks after the second immunization, the clinical disease scores were determined as described in Materials and methods. Values given as medians with the 25th and 75th percentiles.