title: Thanks to Beryl Benacerraf from the deputy editors.
authors.forename: Carol B
authors.initials: CB
authors.lastname: Benson
authors.forename: William D
authors.initials: WD
authors.lastname: Middleton
authors.forename: Thomas R
authors.initials: TR
authors.lastname: Nelson
mesh_terms: D049674:History, 21st Century; D006801:Humans; D010506:Periodicals as Topic / Q000266:history; D014463:Ultrasonography / Q000266:history