The lymphocytic origin of a plasma factor responsible for hypersensitivity in vitro of tuberculin type.
D006801:Humans; D006967:Hypersensitivity; D066298:In Vitro Techniques; D007962:Leukocytes; D008214:Lymphocytes; D009504:Neutrophils; D010949:Plasma; D014373:Tuberculin
D014373:Tuberculin
LYMPHOCYTES; TUBERCULIN