To the Editor:—
We should like to acknowledge your generous reference to our studies in your editorial (193:1049, 1965). May we, however, point out that our discussion of the etiology and pathogenesis of systemic lupus erythematosus appeared in the American Journal of Medicine (38:793, 1965), and not in the Annals of Internal Medicine. The analysis of statistical and genetical features of manic-depressive psychosis was given in the British Journal of Psychiatry (110:808, 1964), and not in the British Journal of Psychology. Interested readers might like to consult the Quarterly Review of Biology (40: 252, 1965) for a discussion of the form of somatic mutation that may be involved in the pathogenesis of systemic lupus erythematosus and other spontaneous disturbed-tolerance autoimmune diseases.