Cold-reactive lymphocytotoxins in Crohn's disease and ulcerative colitis. I. Incidence and characterization.

The incidence of cold-reactive lymphocytotoxins in the serum of patients with Crohn's disease or ulcerative colitis has been investigated. Twenty-seven percent of patients with Crohn's disease and twenty-two percent of those with ulcerative colitis had circulating lymphocytotoxins. This is...