Walters Sarah, Valliani Talal, Przemioslo Robert, Rooney Nicholas
Department of Gastroenterology and Hepatology, Frenchay Hospital, Bristol, UK.
Department of Gastroenterology and Hepatology, Frenchay Hospital, Bristol, UK.
Lancet. 2014 Jun 28;383(9936):2268. doi: 10.1016/S0140-6736(14)61043-6.