“…These diseases include idiopathic glomerulonephritis, systemic lupus erythematosus, and related connective tissue and autoimmune diseases. In the association of autoimmunity, connective tissue disease, and lymphoid neoplasia (2,32,33,6), NZB mice provide a uniquely challenging model of human diseases, because a similar constellation of disorders, or clinical transitions among them, are known to occur sometimes in man (34)(35)(36)(37).…”