Özgenç, F.; Karakoyun, M.; Ecevit, Çiğdem; Hekimci, H.; Kıran Taşçı, E.; Erdemir, G. Efficacy and Safety of Long-Term Thiopurine Maintenance Treatment for Ulcerative Colitis in Turkey: A Single-Center Experience. Turkish Journal of Gastroenterology 2018, 29, 650-654.