- Differential efficacy of human recombinant interferon-alpha2a on ocular and extraocular manifestations of Behçet disease: results of an open 4-center trial. Kötter, I., Vonthein, R., Zierhut, M., Eckstein, A.K., Ness, T., Günaydin, I., Grimbacher, B., Blaschke, S., Peter, H.H., Stübiger, N. Semin. Arthritis Rheum. (2004)