title: Response to Perryman.
authors: Nancy Mary
authors: NM
authors: Panella
mesh_terms: D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007992:Libraries, Hospital / Q000266:history*; D007999:Library Services / Q000266:history; D010361:Patients / Q000266:history; D014481:United States