title: Reply.
authors.affiliation: Cirrhosis Care Clinic, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada.
authors.forename: Puneeta
authors.initials: P
authors.lastname: Tandon
authors.affiliation: Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada.
authors.forename: Marina
authors.initials: M
authors.lastname: Mourtzakis