- Novel biomarkers in autoimmune diseases: prolactin, ferritin, vitamin D, and TPA levels in autoimmune diseases. Orbach, H., Zandman-Goddard, G., Amital, H., Barak, V., Szekanecz, Z., Szucs, G., Danko, K., Nagy, E., Csepany, T., Carvalho, J.F., Doria, A., Shoenfeld, Y. Ann. N. Y. Acad. Sci. (2007)