Advertisements in The Laryngoscope. Spanish influenza--1918.
D000329:Advertising / Q000266:history*; D049673:History, 20th Century; D006801:Humans; D007252:Influenza Vaccines / Q000266:history*; D007251:Influenza, Human / Q000266:history* / Q000517:prevention & control; D014481:United States
D007252:Influenza Vaccines