TY - STAND AU - H. El-Serag AU - C. Hill AU - R. Jones BT - Aliment Pharmacol Ther DO - 10.1111/j.1365-2036.2008.03901.x M1 - 5 PY - 2009 SP - 470 EP - 80 T2 - Aliment Pharmacol Ther TI - Systematic review: the epidemiology of gastro-oesophageal reflux disease in primary care, using the UK General Practice Research Database VL - 29 SN - 0269-2813 ER -