"The old man's friend".
Fedson
D S
DS
Waida
A
A
Nicol
J P
JP
Roos
L L
LL
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
D007252:Influenza Vaccines