Filiz Eser, Hatice Bodur, Lale Akbulut Aktekin, and Ümit Seçkin. 2008. “Evaluation of Effectiveness of Leflunomide in the Treatment of Rheumatoid Arthritis”. Archives of Rheumatology 23 (2):052-055. http://anadolupsikiyatri.net/index.php/pub/article/view/247.