title: What is the utility of measuring the serum ammonia level in patients with altered mental status?
authors.affiliation: Transplant Institute, Avera Center for Liver Disease, Sioux Falls, SD 57105, USA. hesham.elgouhari@mckennan.org
authors.forename: Hesham M
authors.initials: HM
authors.lastname: Elgouhari
authors.forename: Robert
authors.initials: R
authors.lastname: O'Shea