title: To Morris F Collen: happy ninetieth!
authors.forename: Jochen R
authors.initials: JR
authors.lastname: Moehr
mesh_terms: D000846:Anniversaries and Special Events; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D008490:Medical Informatics / Q000266:history*; D008486:Physician Executives / Q000266:history*; D014481:United States