A breath of fresh air.
D049672:History, 19th Century; D049673:History, 20th Century; D006782:Hospitals, Special / Q000266:history*; D006801:Humans; D006920:Hygiene / Q000266:history*; D013812:Therapeutics / Q000266:history; D014376:Tuberculosis / Q000266:history*; D006113:United Kingdom