Tse, Frances MD, MSc (Epid), FRCPC1; Yuan, Yuhong MD, MSc (Epid), PhD1
1 McMaster University, Health Sciences Centre, Department of Medicine, Division of Gastroenterology, Hamilton, Ontario, Canada
Correspondence: Frances Tse, MD, MSc (Epid), FRCPC, McMaster University, Health Sciences Centre, Department of Medicine, Division of Gastroenterology, 1280 Main Street West, Suite 2F, Hamilton, Ontario, Canada L8S 4K1. E-mail: [email protected]
doi: 10.1038/ajg.2012.432