1. Arthr;BARDEN, J.; MULLINAX, F.; WALLER, M.;and Rheum,1967
2. BLOCH, K. J., BUCHANAN, W. W., WOHL, M. J., AND BUNIM, J. J. (1965) Medicine (Baltimore), 44, 187 (Sjogren's syndrome).
3. CASS, R. M., MONGAN, E. S., JACOX, R. F., AND VAUGHAN, J. H. (1968) Ann. intern. Med., 69, 749 (Immunoglobulins G, A, and M in systemic lupus erythematosus).
4. CLAMAN, H. N., AND MERRILL, D. (1966) J. Lab. clin. Med., 67, 850 (Serum immunoglobulins in rheumatoid arthritis).
5. GUMPEL, J. M. Proc. roy. Soc. Med. (In press).