- Influence of interleukin 12B (IL12B) polymorphisms on spontaneous and treatment-induced recovery from hepatitis C virus infection. Mueller, T., Mas-Marques, A., Sarrazin, C., Wiese, M., Halangk, J., Witt, H., Ahlenstiel, G., Spengler, U., Goebel, U., Wiedenmann, B., Schreier, E., Berg, T. J. Hepatol. (2004)