3Shaw MJ,Talley NJ,Beebe TJ,et al.Initial validation of a diagnostic questionnaire for gastroesophageal reflux disease[J].Am J Gastroenterol,2001,96:52-57.
4Hu WHC,Wong WM,Lam CLK,et al.Anxiety but not depression determines health seeking behaviour in Chinese patients with dyspepsia and irritable bowel syndrome:a population based study[J].Aliment Pharmacol Ther,2002,16:2081-2088.
5Wong WM,Lam KF,Lai KC,et al.A validated symptoms questionnaire (Chinese GERDQ) for the diagnosis of gastro-oesophageal reflux disease in the Chinese population[J].Aliment Pharmacol Ther,2003,17:1407-1413.