title: Rebuttal From Dr Schmidt.
authors.affiliation: Division of Pulmonary Diseases, Critical Care, and Occupational Medicine, Department of Internal Medicine, University of Iowa, Iowa City, IA. Electronic address: gregory-a-schmidt@uiowa.edu.
authors.forename: Gregory A
authors.initials: GA
authors.lastname: Schmidt
mesh_terms: D005440:Fluid Therapy; D006801:Humans; D012769:Shock; D014463:Ultrasonography; D014682:Vena Cava, Inferior