The prevalence of CYP2C19 mutations in Turkish patients with dyspepsia - ÇELEBİ, Altay and Kocaman, Orhan and SAVLI, Hakan and AYGÜN, Cem and KONDUK, Buğra Tolga and ŞENTÜRK, Ömer and HÜLAGÜ, Sadettin (Turkish Journal of Gastroenterology, 2009)