title: "The old man's friend".
authors.forename: D S
authors.initials: DS
authors.lastname: Fedson
authors.forename: A
authors.initials: A
authors.lastname: Waida
authors.forename: J P
authors.initials: JP
authors.lastname: Nicol
authors.forename: L L
authors.initials: LL
authors.lastname: Roos
mesh_terms: D000368:Aged; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D007252:Influenza Vaccines / Q000627:therapeutic use; D008297:Male; D011014:Pneumonia / Q000150:complications* / Q000517:prevention & control; D016016:Proportional Hazards Models
chemical_list: D007252:Influenza Vaccines