Andi Jayalangkara Tanra, Kristian Liaury, Novianti Hajai, - Comparison between Interleukin-2 Serum Levels and Positive and Negative Syndrome Scale Scores of Schizophrenia Patients that Received Haloperidol with Risperidone Therapy. Scientific Foundation SPIROSKI, Skopje, Republic of Macedonia. ISSN 1857-9655