Rules to control visitors, 1746-1900.
D004739:England; D049671:History, 18th Century; D049672:History, 19th Century; D006739:Hospital Administration / Q000266:history*; D006761:Hospitals / Q000266:history*; D006788:Hospitals, Voluntary / Q000266:history*; D006801:Humans; D014789:Visitors to Patients