A gamma-globulin factor in the serum of patients with systemic lupus erythematosus that reacts with isolated cell nuclei 1 or nucleoprotein 2,3 has been detected in many ways. 4 The standard method of ...

At the New York City Department of Health a serologic study was undertaken in an attempt to cut the mounting costs of syphilis serology and to solve the problem of the biologic false positive reaction ...