Hepatitis A and drug misuse in the West Midlands.
D004196:Disease Outbreaks / Q000706:statistics & numerical data*; D004739:England / Q000453:epidemiology; D006506:Hepatitis A / Q000453:epidemiology* / Q000209:etiology*; D006801:Humans; D011159:Population Surveillance; D012307:Risk Factors; D019966:Substance-Related Disorders / Q000150:complications*