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