- Pure red cell aplasia and protein-losing enteropathy in a patient with systemic lupus erythematosus. Heck, L.W., Alarcón, G.S., Ball, G.V., Phillips, R.L., Kline, L.B., Moreno, H., Hirschowitz, B.I., Baer, A.N., Dessypris, E.N. Arthritis Rheum. (1985)