title: Considerations During M-mode Hemidiaphragm Scanning.
authors.affiliation: Department of Anesthesiology University Hospital London Health Sciences Centre London, Ontario, Canada.
authors.forename: David
authors.initials: D
authors.lastname: Johnston
mesh_terms: D065527:Brachial Plexus Block / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D018084:Ultrasonography, Interventional / Q000379:methods*