Influenza immunization for high risk populations.
Gemmill
I
I
D000368:Aged; D001294:Attitude to Health; D002170:Canada; D002648:Child; D002908:Chronic Disease; D006801:Humans; D007252:Influenza Vaccines; D007251:Influenza, Human / Q000517:prevention & control*; D011634:Public Health; D012307:Risk Factors
D007252:Influenza Vaccines