Department of Gastroenterology and Hepatology, The General Hospital of the Chinese People's Liberation Army,Beijing, China;
Department of Gastroenterology and Hepatology, The General Hospital of the Chinese People's Liberation Army,Beijing, China;
Department of Gastroenterology and Hepatology, The General Hospital of the Chinese People's Liberation Army,Beijing, China;
Department of Gastroenterology and Hepatology, The General Hospital of the Chinese People's Liberation Army,Beijing, China;
Department of Gastroenterology and Hepatology, The General Hospital of the Chinese People's Liberation Army,Beijing, China;
Department of Gastroenterology and Hepatology, The General Hospital of the Chinese People's Liberation Army,Beijing, China;
Department of Gastroenterology and Hepatology, The General Hospital of the Chinese People's Liberation Army,Beijing, China;
Department of Gastroenterology and Hepatology, The General Hospital of the Chinese People's Liberation Army,Beijing, China;
Department of Gastroenterology and Hepatology, The General Hospital of the Chinese People's Liberation Army,Beijing, China;
Department of Gastroenterology and Hepatology, The General Hospital of the Chinese People's Liberation Army,Beijing, China;
Department of Gastroenterology and Hepatology, The General Hospital of the Chinese People's Liberation Army,Beijing, China;
Department of Gastroenterology and Hepatology, The General Hospital of the Chinese People's Liberation Army,Beijing, China;
Division of Gastroenterology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA;
Division of Gastroenterology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA;
