Mahmutovic S, et al.. (2004) Significance of the interferon (IFN) in the therapy. Bosn J Basic Med Sci. 4(4): 42-4.Wang, et al.. (2004) Fever of recombinant human interferon-alpha is mediated by opioid domain interaction with opioid receptor inducing prostaglandin E2. J Neuroimmunol. 156(1-2): 107-12.